/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:41:46,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:41:46,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:41:46,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:41:46,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:41:46,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:41:46,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:41:46,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:41:46,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:41:46,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:41:46,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:41:46,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:41:46,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:41:46,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:41:46,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:41:46,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:41:46,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:41:46,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:41:46,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:41:46,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:41:46,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:41:46,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:41:46,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:41:46,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:41:46,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:41:46,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:41:46,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:41:46,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:41:46,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:41:46,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:41:46,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:41:46,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:41:46,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:41:46,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:41:46,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:41:46,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:41:46,490 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 12:41:46,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:41:46,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:41:46,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:41:46,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:41:46,550 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:41:46,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:41:46,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:41:46,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:41:46,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:41:46,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:41:46,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:41:46,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:41:46,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:41:46,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:41:46,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:41:46,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:41:46,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:41:46,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:41:46,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:41:46,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:41:46,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:41:46,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:41:46,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:41:46,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:41:46,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:41:46,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:41:46,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:41:46,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:41:46,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:41:46,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:41:46,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:41:47,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:41:47,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:41:47,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:41:47,017 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:41:47,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-11-09 12:41:47,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46f9a4363/a7b2dfe6097d434fa4889ee4eef7bae0/FLAG298f14938 [2020-11-09 12:41:47,817 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:41:47,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-11-09 12:41:47,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46f9a4363/a7b2dfe6097d434fa4889ee4eef7bae0/FLAG298f14938 [2020-11-09 12:41:48,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46f9a4363/a7b2dfe6097d434fa4889ee4eef7bae0 [2020-11-09 12:41:48,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:41:48,051 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:41:48,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:41:48,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:41:48,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:41:48,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735d41f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48, skipping insertion in model container [2020-11-09 12:41:48,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:41:48,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:41:48,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:41:48,617 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:41:48,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:41:48,880 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:41:48,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48 WrapperNode [2020-11-09 12:41:48,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:41:48,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:41:48,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:41:48,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:41:48,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:41:48,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:41:48,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:41:48,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:41:48,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (1/1) ... [2020-11-09 12:41:48,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:41:48,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:41:48,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:41:48,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:41:48,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (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 12:41:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:41:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:41:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:41:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:41:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:41:49,043 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:41:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:41:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:41:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:41:49,047 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 12:41:49,481 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:41:49,481 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:41:49,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:49 BoogieIcfgContainer [2020-11-09 12:41:49,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:41:49,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:41:49,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:41:49,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:41:49,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:41:48" (1/3) ... [2020-11-09 12:41:49,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ec8ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:41:49, skipping insertion in model container [2020-11-09 12:41:49,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:48" (2/3) ... [2020-11-09 12:41:49,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ec8ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:41:49, skipping insertion in model container [2020-11-09 12:41:49,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:49" (3/3) ... [2020-11-09 12:41:49,493 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-11-09 12:41:49,513 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:41:49,513 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:41:49,517 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:41:49,518 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:41:49,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,555 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,555 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,556 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,556 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,558 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,561 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,561 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,562 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,562 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,562 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,567 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,580 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,580 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,581 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,581 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:41:49,583 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:41:49,597 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:41:49,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:41:49,621 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:41:49,621 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:41:49,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:41:49,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:41:49,622 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:41:49,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:41:49,622 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:41:49,636 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:41:49,638 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:41:49,642 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 12:41:49,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 12:41:49,689 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 12:41:49,689 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:41:49,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 12:41:49,700 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 12:41:53,797 WARN L194 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 12:41:53,920 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:41:54,169 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 12:41:54,281 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:41:54,308 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-11-09 12:41:54,308 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 12:41:54,316 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 12:41:54,344 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 12:41:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 12:41:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:41:54,353 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:54,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:54,354 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:54,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:54,359 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-11-09 12:41:54,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:54,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440823486] [2020-11-09 12:41:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:54,611 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 12:41:54,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440823486] [2020-11-09 12:41:54,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:54,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:41:54,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096912937] [2020-11-09 12:41:54,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 12:41:54,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:54,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 12:41:54,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 12:41:54,635 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 12:41:54,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:54,672 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 12:41:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 12:41:54,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 12:41:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:54,700 INFO L225 Difference]: With dead ends: 362 [2020-11-09 12:41:54,700 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 12:41:54,701 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 12:41:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 12:41:54,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 12:41:54,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 12:41:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 12:41:54,784 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 12:41:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:54,785 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 12:41:54,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 12:41:54,785 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 12:41:54,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:41:54,787 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:54,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:54,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:41:54,787 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:54,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-11-09 12:41:54,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:54,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557236952] [2020-11-09 12:41:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:41:54,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557236952] [2020-11-09 12:41:54,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:54,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:41:54,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479667503] [2020-11-09 12:41:54,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:41:54,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:54,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:41:54,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:41:54,970 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-11-09 12:41:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:55,085 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-11-09 12:41:55,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:41:55,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 12:41:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:55,092 INFO L225 Difference]: With dead ends: 298 [2020-11-09 12:41:55,092 INFO L226 Difference]: Without dead ends: 234 [2020-11-09 12:41:55,093 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 [2020-11-09 12:41:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-09 12:41:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-11-09 12:41:55,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-09 12:41:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-11-09 12:41:55,134 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-11-09 12:41:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:55,136 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-11-09 12:41:55,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:41:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-11-09 12:41:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:41:55,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:55,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:55,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:41:55,141 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:55,141 INFO L82 PathProgramCache]: Analyzing trace with hash 284483281, now seen corresponding path program 1 times [2020-11-09 12:41:55,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:55,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911685775] [2020-11-09 12:41:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:55,299 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 12:41:55,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911685775] [2020-11-09 12:41:55,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:55,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:41:55,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358155809] [2020-11-09 12:41:55,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:41:55,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:55,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:41:55,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:41:55,303 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 5 states. [2020-11-09 12:41:55,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:55,382 INFO L93 Difference]: Finished difference Result 250 states and 660 transitions. [2020-11-09 12:41:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:41:55,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 12:41:55,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:55,388 INFO L225 Difference]: With dead ends: 250 [2020-11-09 12:41:55,389 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 12:41:55,389 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 [2020-11-09 12:41:55,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 12:41:55,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 12:41:55,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 12:41:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 588 transitions. [2020-11-09 12:41:55,416 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 588 transitions. Word has length 11 [2020-11-09 12:41:55,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:55,417 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 588 transitions. [2020-11-09 12:41:55,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:41:55,417 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 588 transitions. [2020-11-09 12:41:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:41:55,422 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:55,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:55,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:41:55,423 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:55,423 INFO L82 PathProgramCache]: Analyzing trace with hash 595693024, now seen corresponding path program 1 times [2020-11-09 12:41:55,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:55,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5351479] [2020-11-09 12:41:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:55,507 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 12:41:55,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5351479] [2020-11-09 12:41:55,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:55,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:41:55,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818424136] [2020-11-09 12:41:55,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:41:55,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:55,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:41:55,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:41:55,510 INFO L87 Difference]: Start difference. First operand 218 states and 588 transitions. Second operand 5 states. [2020-11-09 12:41:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:55,561 INFO L93 Difference]: Finished difference Result 322 states and 862 transitions. [2020-11-09 12:41:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:41:55,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 12:41:55,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:55,564 INFO L225 Difference]: With dead ends: 322 [2020-11-09 12:41:55,564 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 12:41:55,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:41:55,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 12:41:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 12:41:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 12:41:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 532 transitions. [2020-11-09 12:41:55,596 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 532 transitions. Word has length 12 [2020-11-09 12:41:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:55,597 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 532 transitions. [2020-11-09 12:41:55,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:41:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 532 transitions. [2020-11-09 12:41:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:41:55,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:55,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:55,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:41:55,610 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:55,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1291780610, now seen corresponding path program 1 times [2020-11-09 12:41:55,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:55,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856310774] [2020-11-09 12:41:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:55,711 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 12:41:55,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856310774] [2020-11-09 12:41:55,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:55,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:41:55,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749129102] [2020-11-09 12:41:55,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:41:55,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:55,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:41:55,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:41:55,715 INFO L87 Difference]: Start difference. First operand 202 states and 532 transitions. Second operand 5 states. [2020-11-09 12:41:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:55,762 INFO L93 Difference]: Finished difference Result 264 states and 675 transitions. [2020-11-09 12:41:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:41:55,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 12:41:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:55,764 INFO L225 Difference]: With dead ends: 264 [2020-11-09 12:41:55,765 INFO L226 Difference]: Without dead ends: 128 [2020-11-09 12:41:55,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:41:55,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-11-09 12:41:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-11-09 12:41:55,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-09 12:41:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 305 transitions. [2020-11-09 12:41:55,771 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 305 transitions. Word has length 13 [2020-11-09 12:41:55,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:55,772 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 305 transitions. [2020-11-09 12:41:55,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:41:55,772 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 305 transitions. [2020-11-09 12:41:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:41:55,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:55,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:55,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:41:55,773 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:55,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:55,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1561819538, now seen corresponding path program 1 times [2020-11-09 12:41:55,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:55,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930395226] [2020-11-09 12:41:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:55,832 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 12:41:55,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930395226] [2020-11-09 12:41:55,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:55,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:41:55,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189045585] [2020-11-09 12:41:55,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:41:55,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:55,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:41:55,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:41:55,835 INFO L87 Difference]: Start difference. First operand 128 states and 305 transitions. Second operand 5 states. [2020-11-09 12:41:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:55,887 INFO L93 Difference]: Finished difference Result 148 states and 345 transitions. [2020-11-09 12:41:55,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:41:55,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 12:41:55,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:55,889 INFO L225 Difference]: With dead ends: 148 [2020-11-09 12:41:55,889 INFO L226 Difference]: Without dead ends: 100 [2020-11-09 12:41:55,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:41:55,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-09 12:41:55,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-09 12:41:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-09 12:41:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 223 transitions. [2020-11-09 12:41:55,895 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 223 transitions. Word has length 14 [2020-11-09 12:41:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:55,895 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 223 transitions. [2020-11-09 12:41:55,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:41:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 223 transitions. [2020-11-09 12:41:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:41:55,896 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:41:55,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:41:55,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:41:55,897 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:41:55,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:41:55,897 INFO L82 PathProgramCache]: Analyzing trace with hash 255451346, now seen corresponding path program 1 times [2020-11-09 12:41:55,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:41:55,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561545781] [2020-11-09 12:41:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:41:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:41:55,943 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 12:41:55,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561545781] [2020-11-09 12:41:55,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:41:55,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:41:55,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33745457] [2020-11-09 12:41:55,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:41:55,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:41:55,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:41:55,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:41:55,946 INFO L87 Difference]: Start difference. First operand 100 states and 223 transitions. Second operand 4 states. [2020-11-09 12:41:55,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:41:55,966 INFO L93 Difference]: Finished difference Result 92 states and 203 transitions. [2020-11-09 12:41:55,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:41:55,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-09 12:41:55,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:41:55,967 INFO L225 Difference]: With dead ends: 92 [2020-11-09 12:41:55,967 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:41:55,967 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 12:41:55,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:41:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:41:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:41:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:41:55,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-09 12:41:55,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:41:55,968 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:41:55,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:41:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:41:55,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:41:55,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:41:55,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:41:55 BasicIcfg [2020-11-09 12:41:55,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:41:55,974 INFO L168 Benchmark]: Toolchain (without parser) took 7929.48 ms. Allocated memory was 151.0 MB in the beginning and 228.6 MB in the end (delta: 77.6 MB). Free memory was 125.0 MB in the beginning and 161.3 MB in the end (delta: -36.3 MB). Peak memory consumption was 42.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:41:55,974 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:41:55,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 125.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:41:55,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.85 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 123.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:41:55,977 INFO L168 Benchmark]: Boogie Preprocessor took 26.97 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 122.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:41:55,977 INFO L168 Benchmark]: RCFGBuilder took 521.91 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 100.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:41:55,979 INFO L168 Benchmark]: TraceAbstraction took 6486.34 ms. Allocated memory was 151.0 MB in the beginning and 228.6 MB in the end (delta: 77.6 MB). Free memory was 100.2 MB in the beginning and 161.3 MB in the end (delta: -61.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:41:55,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 825.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 125.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.85 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 123.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.97 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 122.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 521.91 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 100.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6486.34 ms. Allocated memory was 151.0 MB in the beginning and 228.6 MB in the end (delta: 77.6 MB). Free memory was 100.2 MB in the beginning and 161.3 MB in the end (delta: -61.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 961 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 154 SDtfs, 182 SDslu, 266 SDs, 0 SdLazy, 102 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 3037 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...