/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:54:22,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:54:22,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:54:23,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:54:23,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:54:23,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:54:23,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:54:23,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:54:23,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:54:23,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:54:23,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:54:23,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:54:23,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:54:23,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:54:23,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:54:23,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:54:23,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:54:23,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:54:23,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:54:23,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:54:23,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:54:23,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:54:23,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:54:23,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:54:23,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:54:23,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:54:23,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:54:23,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:54:23,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:54:23,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:54:23,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:54:23,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:54:23,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:54:23,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:54:23,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:54:23,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:54:23,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:54:23,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:54:23,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:54:23,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:54:23,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:54:23,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:54:23,129 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:54:23,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:54:23,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:54:23,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:54:23,132 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:54:23,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:54:23,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:54:23,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:54:23,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:54:23,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:54:23,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:54:23,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:54:23,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:54:23,136 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:54:23,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:54:23,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:54:23,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:54:23,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:54:23,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:54:23,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:54:23,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:54:23,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:54:23,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:54:23,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:54:23,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:54:23,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:54:23,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:54:23,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:54:23,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:54:23,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:54:23,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:54:23,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:54:23,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:54:23,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:54:23,592 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:54:23,593 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-09-11 15:54:23,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8b465b2e/8d34acf72afc487f8f3dfc043c6afdc3/FLAG7ae9ac83f [2020-09-11 15:54:24,296 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:54:24,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-09-11 15:54:24,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8b465b2e/8d34acf72afc487f8f3dfc043c6afdc3/FLAG7ae9ac83f [2020-09-11 15:54:24,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8b465b2e/8d34acf72afc487f8f3dfc043c6afdc3 [2020-09-11 15:54:24,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:54:24,593 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:54:24,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:54:24,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:54:24,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:54:24,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:54:24" (1/1) ... [2020-09-11 15:54:24,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79b83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:24, skipping insertion in model container [2020-09-11 15:54:24,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:54:24" (1/1) ... [2020-09-11 15:54:24,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:54:24,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:54:25,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:54:25,199 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:54:25,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:54:25,336 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:54:25,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25 WrapperNode [2020-09-11 15:54:25,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:54:25,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:54:25,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:54:25,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:54:25,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:54:25,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:54:25,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:54:25,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:54:25,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... [2020-09-11 15:54:25,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:54:25,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:54:25,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:54:25,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:54:25,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 15:54:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:54:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:54:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:54:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:54:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:54:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:54:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:54:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:54:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:54:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:54:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:54:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:54:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:54:25,559 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:54:26,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:54:26,011 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:54:26,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:54:26 BoogieIcfgContainer [2020-09-11 15:54:26,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:54:26,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:54:26,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:54:26,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:54:26,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:54:24" (1/3) ... [2020-09-11 15:54:26,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f9bf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:54:26, skipping insertion in model container [2020-09-11 15:54:26,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:25" (2/3) ... [2020-09-11 15:54:26,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f9bf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:54:26, skipping insertion in model container [2020-09-11 15:54:26,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:54:26" (3/3) ... [2020-09-11 15:54:26,033 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-09-11 15:54:26,044 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:54:26,044 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:54:26,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:54:26,056 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:54:26,083 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,084 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,084 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,086 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,086 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,106 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,107 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:26,132 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:54:26,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:54:26,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:54:26,160 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:54:26,160 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:54:26,161 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:54:26,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:54:26,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:54:26,161 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:54:26,180 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-11 15:54:26,183 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:54:26,232 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:54:26,233 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:54:26,239 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:54:26,242 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:54:26,263 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:54:26,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:54:26,264 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:54:26,266 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 15:54:26,268 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:54:27,745 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-11 15:54:27,867 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-09-11 15:54:27,867 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 15:54:27,872 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-11 15:54:27,904 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-11 15:54:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-11 15:54:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:54:27,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:27,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:27,919 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:27,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:27,927 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-09-11 15:54:27,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:27,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362747682] [2020-09-11 15:54:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:28,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362747682] [2020-09-11 15:54:28,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:28,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:54:28,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281828008] [2020-09-11 15:54:28,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 15:54:28,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:28,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 15:54:28,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:54:28,192 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-11 15:54:28,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:28,228 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-11 15:54:28,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 15:54:28,230 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-11 15:54:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:28,251 INFO L225 Difference]: With dead ends: 362 [2020-09-11 15:54:28,251 INFO L226 Difference]: Without dead ends: 298 [2020-09-11 15:54:28,253 INFO L675 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 [2020-09-11 15:54:28,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-11 15:54:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-11 15:54:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-11 15:54:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-11 15:54:28,337 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-11 15:54:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:28,338 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-11 15:54:28,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 15:54:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-11 15:54:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:54:28,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:28,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:28,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:54:28,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:28,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:28,342 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-09-11 15:54:28,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:28,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010113544] [2020-09-11 15:54:28,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:28,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010113544] [2020-09-11 15:54:28,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:28,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:54:28,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910603031] [2020-09-11 15:54:28,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:54:28,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:28,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:54:28,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:54:28,479 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-11 15:54:28,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:28,498 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-11 15:54:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:54:28,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 15:54:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:28,503 INFO L225 Difference]: With dead ends: 217 [2020-09-11 15:54:28,503 INFO L226 Difference]: Without dead ends: 217 [2020-09-11 15:54:28,504 INFO L675 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 [2020-09-11 15:54:28,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-11 15:54:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-11 15:54:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-11 15:54:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-11 15:54:28,535 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-11 15:54:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:28,537 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-11 15:54:28,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:54:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-11 15:54:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:54:28,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:28,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:28,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:54:28,542 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:28,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-09-11 15:54:28,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:28,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724158580] [2020-09-11 15:54:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:28,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724158580] [2020-09-11 15:54:28,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:28,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:54:28,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953432523] [2020-09-11 15:54:28,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:54:28,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:28,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:54:28,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:54:28,668 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-11 15:54:28,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:28,715 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-11 15:54:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:54:28,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:54:28,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:28,718 INFO L225 Difference]: With dead ends: 136 [2020-09-11 15:54:28,719 INFO L226 Difference]: Without dead ends: 136 [2020-09-11 15:54:28,719 INFO L675 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 [2020-09-11 15:54:28,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-11 15:54:28,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-11 15:54:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-11 15:54:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-11 15:54:28,733 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-11 15:54:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:28,733 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-11 15:54:28,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:54:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-11 15:54:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 15:54:28,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:28,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:28,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:54:28,744 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:28,744 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-09-11 15:54:28,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:28,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71388277] [2020-09-11 15:54:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:28,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71388277] [2020-09-11 15:54:28,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:28,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:54:28,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393977705] [2020-09-11 15:54:28,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:54:28,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:28,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:54:28,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:54:28,829 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-11 15:54:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:28,856 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-11 15:54:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:54:28,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-11 15:54:28,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:28,858 INFO L225 Difference]: With dead ends: 109 [2020-09-11 15:54:28,858 INFO L226 Difference]: Without dead ends: 109 [2020-09-11 15:54:28,858 INFO L675 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 [2020-09-11 15:54:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-11 15:54:28,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-11 15:54:28,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-11 15:54:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-11 15:54:28,863 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-11 15:54:28,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:28,864 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-11 15:54:28,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:54:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-11 15:54:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 15:54:28,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:28,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:28,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:54:28,866 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:28,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-09-11 15:54:28,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:28,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780361701] [2020-09-11 15:54:28,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:29,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780361701] [2020-09-11 15:54:29,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:29,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:54:29,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205857940] [2020-09-11 15:54:29,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:54:29,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:29,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:54:29,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:54:29,004 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-09-11 15:54:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:29,048 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-11 15:54:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:54:29,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-11 15:54:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:29,049 INFO L225 Difference]: With dead ends: 135 [2020-09-11 15:54:29,050 INFO L226 Difference]: Without dead ends: 85 [2020-09-11 15:54:29,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:54:29,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-11 15:54:29,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-11 15:54:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-11 15:54:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-09-11 15:54:29,054 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-09-11 15:54:29,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:29,054 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-09-11 15:54:29,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:54:29,055 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-09-11 15:54:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 15:54:29,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:29,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:29,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:54:29,056 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:29,057 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-09-11 15:54:29,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:29,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8933360] [2020-09-11 15:54:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:29,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8933360] [2020-09-11 15:54:29,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:29,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:54:29,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825201264] [2020-09-11 15:54:29,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:54:29,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:29,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:54:29,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:54:29,137 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-09-11 15:54:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:29,166 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-09-11 15:54:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:54:29,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-11 15:54:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:29,168 INFO L225 Difference]: With dead ends: 99 [2020-09-11 15:54:29,168 INFO L226 Difference]: Without dead ends: 37 [2020-09-11 15:54:29,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:54:29,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-11 15:54:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-11 15:54:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-11 15:54:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-11 15:54:29,170 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-11 15:54:29,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:29,171 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-11 15:54:29,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:54:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-11 15:54:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 15:54:29,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:29,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:29,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:54:29,172 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:29,173 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-09-11 15:54:29,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:29,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398602757] [2020-09-11 15:54:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:29,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398602757] [2020-09-11 15:54:29,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:29,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:54:29,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865134941] [2020-09-11 15:54:29,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:54:29,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:29,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:54:29,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:54:29,244 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-09-11 15:54:29,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:29,291 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-11 15:54:29,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:54:29,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-11 15:54:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:29,292 INFO L225 Difference]: With dead ends: 36 [2020-09-11 15:54:29,292 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:54:29,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:54:29,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:54:29,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:54:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:54:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:54:29,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-11 15:54:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:29,295 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:54:29,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:54:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:54:29,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:54:29,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:54:29,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:54:29 BasicIcfg [2020-09-11 15:54:29,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:54:29,302 INFO L168 Benchmark]: Toolchain (without parser) took 4714.27 ms. Allocated memory was 140.5 MB in the beginning and 248.0 MB in the end (delta: 107.5 MB). Free memory was 102.5 MB in the beginning and 212.5 MB in the end (delta: -110.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:54:29,303 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-11 15:54:29,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.11 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 162.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:29,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.51 ms. Allocated memory is still 205.0 MB. Free memory was 162.9 MB in the beginning and 161.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:29,306 INFO L168 Benchmark]: Boogie Preprocessor took 43.91 ms. Allocated memory is still 205.0 MB. Free memory was 161.0 MB in the beginning and 159.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:29,307 INFO L168 Benchmark]: RCFGBuilder took 541.47 ms. Allocated memory is still 205.0 MB. Free memory was 159.1 MB in the beginning and 136.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:29,308 INFO L168 Benchmark]: TraceAbstraction took 3278.01 ms. Allocated memory was 205.0 MB in the beginning and 248.0 MB in the end (delta: 43.0 MB). Free memory was 136.4 MB in the beginning and 212.5 MB in the end (delta: -76.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:54:29,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.11 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 162.9 MB in the end (delta: -61.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 96.51 ms. Allocated memory is still 205.0 MB. Free memory was 162.9 MB in the beginning and 161.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.91 ms. Allocated memory is still 205.0 MB. Free memory was 161.0 MB in the beginning and 159.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 541.47 ms. Allocated memory is still 205.0 MB. Free memory was 159.1 MB in the beginning and 136.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3278.01 ms. Allocated memory was 205.0 MB in the beginning and 248.0 MB in the end (delta: 43.0 MB). Free memory was 136.4 MB in the beginning and 212.5 MB in the end (delta: -76.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 663 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 3389 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...