/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/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:17:03,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:17:03,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:17:03,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:17:03,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:17:03,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:17:03,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:17:03,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:17:03,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:17:03,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:17:03,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:17:03,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:17:03,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:17:03,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:17:03,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:17:03,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:17:03,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:17:03,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:17:03,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:17:03,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:17:03,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:17:03,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:17:03,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:17:03,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:17:03,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:17:03,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:17:03,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:17:03,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:17:03,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:17:03,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:17:03,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:17:03,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:17:03,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:17:03,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:17:03,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:17:03,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:17:03,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:17:03,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:17:03,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:17:03,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:17:03,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:17:03,328 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 15:17:03,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:17:03,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:17:03,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:17:03,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:17:03,381 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:17:03,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:17:03,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:17:03,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:17:03,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:17:03,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:17:03,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:17:03,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:17:03,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:17:03,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:17:03,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:17:03,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:17:03,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:17:03,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:17:03,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:17:03,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:17:03,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:17:03,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:17:03,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:17:03,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:17:03,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:17:03,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:17:03,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:17:03,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:17:03,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:17:03,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:17:03,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:17:03,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:17:03,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:17:03,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:17:03,853 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:17:03,854 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-09-11 15:17:03,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9407c683b/c68f0e2dab7e409bba01e341840ddc90/FLAG46386a49e [2020-09-11 15:17:04,583 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:17:04,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-09-11 15:17:04,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9407c683b/c68f0e2dab7e409bba01e341840ddc90/FLAG46386a49e [2020-09-11 15:17:04,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9407c683b/c68f0e2dab7e409bba01e341840ddc90 [2020-09-11 15:17:04,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:17:04,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:17:04,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:17:04,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:17:04,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:17:04,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:17:04" (1/1) ... [2020-09-11 15:17:04,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c77c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:04, skipping insertion in model container [2020-09-11 15:17:04,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:17:04" (1/1) ... [2020-09-11 15:17:04,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:17:04,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:17:05,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:17:05,423 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:17:05,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:17:05,560 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:17:05,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05 WrapperNode [2020-09-11 15:17:05,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:17:05,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:17:05,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:17:05,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:17:05,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:17:05,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:17:05,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:17:05,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:17:05,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (1/1) ... [2020-09-11 15:17:05,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:17:05,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:17:05,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:17:05,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:17:05,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (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 15:17:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:17:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:17:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:17:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:17:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:17:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:17:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:17:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:17:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:17:05,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:17:05,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:17:05,731 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 15:17:06,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:17:06,062 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:17:06,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:17:06 BoogieIcfgContainer [2020-09-11 15:17:06,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:17:06,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:17:06,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:17:06,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:17:06,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:17:04" (1/3) ... [2020-09-11 15:17:06,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a9e2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:17:06, skipping insertion in model container [2020-09-11 15:17:06,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:05" (2/3) ... [2020-09-11 15:17:06,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a9e2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:17:06, skipping insertion in model container [2020-09-11 15:17:06,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:17:06" (3/3) ... [2020-09-11 15:17:06,077 INFO L109 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-09-11 15:17:06,087 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:17:06,088 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:17:06,097 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:17:06,099 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:17:06,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,138 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,139 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,147 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:06,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-11 15:17:06,198 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:17:06,198 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:17:06,198 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:17:06,198 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:17:06,198 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:17:06,198 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:17:06,198 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:17:06,199 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:17:06,214 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-09-11 15:17:06,217 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-11 15:17:06,263 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-11 15:17:06,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:17:06,269 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-11 15:17:06,271 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-11 15:17:06,290 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-11 15:17:06,290 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:17:06,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-11 15:17:06,293 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-11 15:17:06,295 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:17:07,487 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-09-11 15:17:07,744 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1251 [2020-09-11 15:17:07,745 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-11 15:17:07,750 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-11 15:17:07,765 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-11 15:17:07,767 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-11 15:17:07,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-11 15:17:07,776 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:07,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-11 15:17:07,777 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1814584925, now seen corresponding path program 1 times [2020-09-11 15:17:07,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:07,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419973505] [2020-09-11 15:17:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:08,030 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 15:17:08,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419973505] [2020-09-11 15:17:08,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:08,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:17:08,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92053868] [2020-09-11 15:17:08,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:08,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:08,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:08,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:08,076 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-11 15:17:08,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:08,115 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-09-11 15:17:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:08,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-11 15:17:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:08,130 INFO L225 Difference]: With dead ends: 70 [2020-09-11 15:17:08,131 INFO L226 Difference]: Without dead ends: 54 [2020-09-11 15:17:08,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 15:17:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-11 15:17:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-11 15:17:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-11 15:17:08,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-09-11 15:17:08,181 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-09-11 15:17:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:08,181 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-09-11 15:17:08,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:08,182 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-09-11 15:17:08,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-11 15:17:08,182 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:08,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:08,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:17:08,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:08,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:08,184 INFO L82 PathProgramCache]: Analyzing trace with hash 417538412, now seen corresponding path program 1 times [2020-09-11 15:17:08,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:08,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141035972] [2020-09-11 15:17:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:08,288 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 15:17:08,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141035972] [2020-09-11 15:17:08,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:08,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:17:08,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805696000] [2020-09-11 15:17:08,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:08,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:08,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:08,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:08,292 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 3 states. [2020-09-11 15:17:08,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:08,312 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-09-11 15:17:08,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:08,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-11 15:17:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:08,316 INFO L225 Difference]: With dead ends: 53 [2020-09-11 15:17:08,316 INFO L226 Difference]: Without dead ends: 53 [2020-09-11 15:17:08,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 15:17:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-11 15:17:08,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-11 15:17:08,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-11 15:17:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-09-11 15:17:08,326 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-09-11 15:17:08,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:08,326 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-09-11 15:17:08,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-09-11 15:17:08,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:17:08,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:08,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:08,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:17:08,328 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:08,328 INFO L82 PathProgramCache]: Analyzing trace with hash 58787852, now seen corresponding path program 1 times [2020-09-11 15:17:08,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:08,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621921600] [2020-09-11 15:17:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:08,392 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 15:17:08,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621921600] [2020-09-11 15:17:08,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:08,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:08,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101406124] [2020-09-11 15:17:08,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:17:08,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:08,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:17:08,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:17:08,395 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-09-11 15:17:08,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:08,417 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-09-11 15:17:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:17:08,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-09-11 15:17:08,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:08,419 INFO L225 Difference]: With dead ends: 60 [2020-09-11 15:17:08,419 INFO L226 Difference]: Without dead ends: 36 [2020-09-11 15:17:08,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:17:08,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-11 15:17:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-11 15:17:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-11 15:17:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-09-11 15:17:08,425 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-09-11 15:17:08,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:08,425 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-09-11 15:17:08,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:17:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-09-11 15:17:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:17:08,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:08,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:08,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:17:08,427 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:08,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1840071362, now seen corresponding path program 1 times [2020-09-11 15:17:08,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:08,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588062175] [2020-09-11 15:17:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:08,506 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 15:17:08,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588062175] [2020-09-11 15:17:08,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:08,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:08,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009881658] [2020-09-11 15:17:08,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:17:08,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:08,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:17:08,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:17:08,509 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-09-11 15:17:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:08,537 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-09-11 15:17:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:17:08,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 15:17:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:08,539 INFO L225 Difference]: With dead ends: 39 [2020-09-11 15:17:08,539 INFO L226 Difference]: Without dead ends: 29 [2020-09-11 15:17:08,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:17:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-11 15:17:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-11 15:17:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-11 15:17:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-09-11 15:17:08,544 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-09-11 15:17:08,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:08,544 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-09-11 15:17:08,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:17:08,544 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-09-11 15:17:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:17:08,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:08,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:08,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:17:08,546 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:08,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:08,546 INFO L82 PathProgramCache]: Analyzing trace with hash 419248155, now seen corresponding path program 1 times [2020-09-11 15:17:08,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:08,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946846323] [2020-09-11 15:17:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:08,626 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 15:17:08,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946846323] [2020-09-11 15:17:08,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:08,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:17:08,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183344803] [2020-09-11 15:17:08,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:17:08,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:08,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:17:08,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:17:08,629 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-09-11 15:17:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:08,667 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-09-11 15:17:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:17:08,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-11 15:17:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:08,669 INFO L225 Difference]: With dead ends: 27 [2020-09-11 15:17:08,669 INFO L226 Difference]: Without dead ends: 22 [2020-09-11 15:17:08,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:17:08,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-11 15:17:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-11 15:17:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-11 15:17:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-09-11 15:17:08,673 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-09-11 15:17:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:08,673 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-09-11 15:17:08,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:17:08,674 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-09-11 15:17:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:17:08,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:08,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:08,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:17:08,675 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:08,675 INFO L82 PathProgramCache]: Analyzing trace with hash -830614075, now seen corresponding path program 1 times [2020-09-11 15:17:08,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:08,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516073401] [2020-09-11 15:17:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:08,716 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 15:17:08,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516073401] [2020-09-11 15:17:08,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:08,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:08,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007321917] [2020-09-11 15:17:08,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:08,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:08,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:08,719 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-09-11 15:17:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:08,723 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-09-11 15:17:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:08,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-11 15:17:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:08,724 INFO L225 Difference]: With dead ends: 21 [2020-09-11 15:17:08,724 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:17:08,725 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 15:17:08,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:17:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:17:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:17:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:17:08,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-11 15:17:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:08,726 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:17:08,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:17:08,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:17:08,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:17:08,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:17:08 BasicIcfg [2020-09-11 15:17:08,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:17:08,733 INFO L168 Benchmark]: Toolchain (without parser) took 3880.20 ms. Allocated memory was 142.1 MB in the beginning and 243.3 MB in the end (delta: 101.2 MB). Free memory was 103.0 MB in the beginning and 121.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:08,734 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:17:08,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.09 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 161.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:08,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.64 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:08,737 INFO L168 Benchmark]: Boogie Preprocessor took 27.20 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:08,738 INFO L168 Benchmark]: RCFGBuilder took 419.33 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 137.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:08,738 INFO L168 Benchmark]: TraceAbstraction took 2662.90 ms. Allocated memory was 204.5 MB in the beginning and 243.3 MB in the end (delta: 38.8 MB). Free memory was 137.9 MB in the beginning and 121.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:08,742 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.09 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 161.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.64 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.20 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.33 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 137.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2662.90 ms. Allocated memory was 204.5 MB in the beginning and 243.3 MB in the end (delta: 38.8 MB). Free memory was 137.9 MB in the beginning and 121.3 MB in the end (delta: 16.6 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 60 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 7 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 372 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1251 CheckedPairsTotal, 49 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 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 71 SDtfs, 42 SDslu, 61 SDs, 0 SdLazy, 47 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...