/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:40:45,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:40:45,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:40:45,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:40:45,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:40:45,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:40:45,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:40:45,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:40:45,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:40:45,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:40:45,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:40:45,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:40:45,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:40:45,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:40:45,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:40:45,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:40:45,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:40:45,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:40:45,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:40:46,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:40:46,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:40:46,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:40:46,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:40:46,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:40:46,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:40:46,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:40:46,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:40:46,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:40:46,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:40:46,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:40:46,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:40:46,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:40:46,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:40:46,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:40:46,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:40:46,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:40:46,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:40:46,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:40:46,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:40:46,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:40:46,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:40:46,058 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:40:46,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:40:46,058 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:40:46,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:40:46,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:40:46,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:40:46,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:40:46,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:40:46,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:40:46,060 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:40:46,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:40:46,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:40:46,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:40:46,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:40:46,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:40:46,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:40:46,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:40:46,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:40:46,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:40:46,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:40:46,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:40:46,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:40:46,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:40:46,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:40:46,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:40:46,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:40:46,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:40:46,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:40:46,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:40:46,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:40:46,479 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:40:46,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-11-09 12:40:46,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41b10cc3/cfe74ef0e3b6452fb31ec01548e34432/FLAGa3a18bfe2 [2020-11-09 12:40:47,300 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:40:47,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-11-09 12:40:47,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41b10cc3/cfe74ef0e3b6452fb31ec01548e34432/FLAGa3a18bfe2 [2020-11-09 12:40:47,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41b10cc3/cfe74ef0e3b6452fb31ec01548e34432 [2020-11-09 12:40:47,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:40:47,578 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:40:47,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:40:47,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:40:47,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:40:47,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:40:47" (1/1) ... [2020-11-09 12:40:47,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195b5a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:47, skipping insertion in model container [2020-11-09 12:40:47,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:40:47" (1/1) ... [2020-11-09 12:40:47,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:40:47,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:40:48,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:40:48,170 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:40:48,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:40:48,429 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:40:48,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48 WrapperNode [2020-11-09 12:40:48,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:40:48,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:40:48,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:40:48,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:40:48,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:40:48,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:40:48,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:40:48,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:40:48,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (1/1) ... [2020-11-09 12:40:48,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:40:48,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:40:48,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:40:48,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:40:48,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (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 [2020-11-09 12:40:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:40:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:40:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:40:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:40:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:40:48,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:40:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:40:48,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:40:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:40:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:40:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:40:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:40:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:40:48,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:40:48,618 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:40:49,147 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:40:49,147 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:40:49,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:40:49 BoogieIcfgContainer [2020-11-09 12:40:49,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:40:49,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:40:49,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:40:49,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:40:49,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:40:47" (1/3) ... [2020-11-09 12:40:49,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1235d365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:40:49, skipping insertion in model container [2020-11-09 12:40:49,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:40:48" (2/3) ... [2020-11-09 12:40:49,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1235d365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:40:49, skipping insertion in model container [2020-11-09 12:40:49,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:40:49" (3/3) ... [2020-11-09 12:40:49,160 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-11-09 12:40:49,177 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:40:49,178 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:40:49,182 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:40:49,183 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:40:49,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,225 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,225 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,227 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,234 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,244 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,245 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,245 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,245 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,251 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,251 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:40:49,255 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:40:49,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:40:49,296 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:40:49,296 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:40:49,296 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:40:49,297 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:40:49,297 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:40:49,297 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:40:49,297 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:40:49,297 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:40:49,312 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:40:49,315 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 12:40:49,319 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 12:40:49,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 12:40:49,371 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 12:40:49,372 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:40:49,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:40:49,380 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:40:52,116 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 12:40:52,301 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-09 12:40:53,191 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:40:53,309 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:40:53,540 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:40:53,650 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:40:53,683 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-11-09 12:40:53,684 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 12:40:53,691 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 12:40:53,738 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 12:40:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 12:40:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:40:53,753 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:53,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:53,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:53,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:53,767 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-11-09 12:40:53,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:53,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029818286] [2020-11-09 12:40:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:53,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029818286] [2020-11-09 12:40:53,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:53,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:40:53,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424578122] [2020-11-09 12:40:53,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:40:53,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:54,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:40:54,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:40:54,010 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 12:40:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:54,065 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 12:40:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:40:54,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:40:54,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:54,088 INFO L225 Difference]: With dead ends: 362 [2020-11-09 12:40:54,088 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 12:40:54,090 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 [2020-11-09 12:40:54,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 12:40:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 12:40:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 12:40:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 12:40:54,169 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 12:40:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:54,171 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 12:40:54,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:40:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 12:40:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:40:54,173 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:54,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:54,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:40:54,173 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:54,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:54,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-11-09 12:40:54,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:54,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072215083] [2020-11-09 12:40:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:54,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072215083] [2020-11-09 12:40:54,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:54,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:40:54,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810421548] [2020-11-09 12:40:54,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:40:54,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:54,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:40:54,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:40:54,360 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-11-09 12:40:54,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:54,398 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-11-09 12:40:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:40:54,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 12:40:54,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:54,405 INFO L225 Difference]: With dead ends: 217 [2020-11-09 12:40:54,408 INFO L226 Difference]: Without dead ends: 217 [2020-11-09 12:40:54,410 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 [2020-11-09 12:40:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-11-09 12:40:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-11-09 12:40:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-11-09 12:40:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-11-09 12:40:54,450 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-11-09 12:40:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:54,450 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-11-09 12:40:54,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:40:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-11-09 12:40:54,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:40:54,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:54,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:54,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:40:54,455 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:54,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:54,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-11-09 12:40:54,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:54,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583500606] [2020-11-09 12:40:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:54,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583500606] [2020-11-09 12:40:54,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:54,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:40:54,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132406310] [2020-11-09 12:40:54,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:40:54,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:54,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:40:54,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:40:54,542 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-11-09 12:40:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:54,579 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-11-09 12:40:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:40:54,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 12:40:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:54,583 INFO L225 Difference]: With dead ends: 136 [2020-11-09 12:40:54,583 INFO L226 Difference]: Without dead ends: 136 [2020-11-09 12:40:54,583 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 [2020-11-09 12:40:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-09 12:40:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-11-09 12:40:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-09 12:40:54,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-11-09 12:40:54,605 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-11-09 12:40:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:54,606 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-11-09 12:40:54,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:40:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-11-09 12:40:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:40:54,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:54,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:54,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:40:54,612 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:54,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:54,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-11-09 12:40:54,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:54,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609146559] [2020-11-09 12:40:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:54,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609146559] [2020-11-09 12:40:54,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:54,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:40:54,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095564843] [2020-11-09 12:40:54,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:40:54,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:54,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:40:54,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:40:54,726 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-11-09 12:40:54,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:54,756 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-11-09 12:40:54,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:40:54,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 12:40:54,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:54,758 INFO L225 Difference]: With dead ends: 109 [2020-11-09 12:40:54,758 INFO L226 Difference]: Without dead ends: 109 [2020-11-09 12:40:54,758 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 [2020-11-09 12:40:54,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-09 12:40:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-09 12:40:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-09 12:40:54,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-11-09 12:40:54,764 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-11-09 12:40:54,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:54,764 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-11-09 12:40:54,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:40:54,764 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-11-09 12:40:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:40:54,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:54,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:54,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:40:54,766 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:54,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-11-09 12:40:54,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:54,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428572035] [2020-11-09 12:40:54,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:54,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428572035] [2020-11-09 12:40:54,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:54,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:40:54,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655608732] [2020-11-09 12:40:54,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:40:54,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:54,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:40:54,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:40:54,892 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-11-09 12:40:54,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:54,923 INFO L93 Difference]: Finished difference Result 127 states and 273 transitions. [2020-11-09 12:40:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:40:54,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 12:40:54,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:54,924 INFO L225 Difference]: With dead ends: 127 [2020-11-09 12:40:54,925 INFO L226 Difference]: Without dead ends: 93 [2020-11-09 12:40:54,925 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 [2020-11-09 12:40:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-09 12:40:54,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-11-09 12:40:54,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-09 12:40:54,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 199 transitions. [2020-11-09 12:40:54,930 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 199 transitions. Word has length 18 [2020-11-09 12:40:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:54,931 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 199 transitions. [2020-11-09 12:40:54,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:40:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 199 transitions. [2020-11-09 12:40:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:40:54,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:54,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:54,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:40:54,932 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:54,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash -17726670, now seen corresponding path program 2 times [2020-11-09 12:40:54,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:54,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542823975] [2020-11-09 12:40:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:55,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542823975] [2020-11-09 12:40:55,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:55,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:40:55,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077583399] [2020-11-09 12:40:55,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:40:55,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:55,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:40:55,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:40:55,015 INFO L87 Difference]: Start difference. First operand 93 states and 199 transitions. Second operand 5 states. [2020-11-09 12:40:55,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:55,058 INFO L93 Difference]: Finished difference Result 131 states and 273 transitions. [2020-11-09 12:40:55,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:40:55,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 12:40:55,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:55,060 INFO L225 Difference]: With dead ends: 131 [2020-11-09 12:40:55,060 INFO L226 Difference]: Without dead ends: 63 [2020-11-09 12:40:55,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:40:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-09 12:40:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-09 12:40:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-09 12:40:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 121 transitions. [2020-11-09 12:40:55,065 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 121 transitions. Word has length 18 [2020-11-09 12:40:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:55,065 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 121 transitions. [2020-11-09 12:40:55,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:40:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 121 transitions. [2020-11-09 12:40:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:40:55,066 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:40:55,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:40:55,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:40:55,066 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:40:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:40:55,067 INFO L82 PathProgramCache]: Analyzing trace with hash 46641744, now seen corresponding path program 3 times [2020-11-09 12:40:55,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:40:55,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758450282] [2020-11-09 12:40:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:40:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:40:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:40:55,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758450282] [2020-11-09 12:40:55,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:40:55,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:40:55,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230006362] [2020-11-09 12:40:55,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:40:55,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:40:55,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:40:55,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:40:55,141 INFO L87 Difference]: Start difference. First operand 63 states and 121 transitions. Second operand 4 states. [2020-11-09 12:40:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:40:55,159 INFO L93 Difference]: Finished difference Result 62 states and 120 transitions. [2020-11-09 12:40:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:40:55,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-09 12:40:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:40:55,160 INFO L225 Difference]: With dead ends: 62 [2020-11-09 12:40:55,160 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:40:55,160 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 [2020-11-09 12:40:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:40:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:40:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:40:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:40:55,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 12:40:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:40:55,161 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:40:55,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:40:55,164 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:40:55,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:40:55,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:40:55,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:40:55 BasicIcfg [2020-11-09 12:40:55,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:40:55,170 INFO L168 Benchmark]: Toolchain (without parser) took 7599.26 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 125.4 MB in the beginning and 193.2 MB in the end (delta: -67.8 MB). Peak memory consumption was 522.6 kB. Max. memory is 8.0 GB. [2020-11-09 12:40:55,171 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:40:55,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.79 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 128.0 MB in the end (delta: -3.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:40:55,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 125.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:40:55,173 INFO L168 Benchmark]: Boogie Preprocessor took 31.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 124.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:40:55,174 INFO L168 Benchmark]: RCFGBuilder took 630.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 102.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:40:55,175 INFO L168 Benchmark]: TraceAbstraction took 6016.67 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 102.3 MB in the beginning and 193.2 MB in the end (delta: -90.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:40:55,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 847.79 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 128.0 MB in the end (delta: -3.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 125.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 124.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 630.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 102.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6016.67 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 102.3 MB in the beginning and 193.2 MB in the end (delta: -90.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 952 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 78 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.3s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 124 SDtfs, 79 SDslu, 157 SDs, 0 SdLazy, 63 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...