/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/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 17:45:52,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 17:45:52,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 17:45:52,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 17:45:52,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 17:45:52,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 17:45:52,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 17:45:52,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 17:45:52,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 17:45:52,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 17:45:52,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 17:45:52,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 17:45:52,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 17:45:52,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 17:45:52,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 17:45:52,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 17:45:52,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 17:45:52,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 17:45:52,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 17:45:52,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 17:45:52,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 17:45:52,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 17:45:52,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 17:45:52,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 17:45:52,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 17:45:52,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 17:45:52,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 17:45:52,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 17:45:52,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 17:45:52,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 17:45:52,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 17:45:52,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 17:45:52,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 17:45:52,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 17:45:52,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 17:45:52,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 17:45:52,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 17:45:52,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 17:45:52,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 17:45:52,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 17:45:52,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 17:45:52,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 17:45:52,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 17:45:52,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 17:45:52,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 17:45:52,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 17:45:52,248 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 17:45:52,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 17:45:52,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 17:45:52,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 17:45:52,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 17:45:52,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 17:45:52,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 17:45:52,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 17:45:52,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 17:45:52,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 17:45:52,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 17:45:52,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 17:45:52,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 17:45:52,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 17:45:52,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 17:45:52,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 17:45:52,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 17:45:52,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 17:45:52,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 17:45:52,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 17:45:52,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 17:45:52,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 17:45:52,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 17:45:52,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 17:45:52,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 17:45:52,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 17:45:52,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 17:45:52,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 17:45:52,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 17:45:52,566 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 17:45:52,566 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 17:45:52,567 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-04-17 17:45:52,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76866b03/54d3c80c972f48a4954e2fcda83ac8ab/FLAGc5849a404 [2020-04-17 17:45:53,145 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 17:45:53,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-04-17 17:45:53,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76866b03/54d3c80c972f48a4954e2fcda83ac8ab/FLAGc5849a404 [2020-04-17 17:45:53,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76866b03/54d3c80c972f48a4954e2fcda83ac8ab [2020-04-17 17:45:53,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 17:45:53,519 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 17:45:53,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 17:45:53,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 17:45:53,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 17:45:53,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:45:53" (1/1) ... [2020-04-17 17:45:53,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c962906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:53, skipping insertion in model container [2020-04-17 17:45:53,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:45:53" (1/1) ... [2020-04-17 17:45:53,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 17:45:53,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 17:45:54,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:45:54,123 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 17:45:54,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:45:54,283 INFO L208 MainTranslator]: Completed translation [2020-04-17 17:45:54,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54 WrapperNode [2020-04-17 17:45:54,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 17:45:54,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 17:45:54,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 17:45:54,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 17:45:54,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 17:45:54,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 17:45:54,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 17:45:54,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 17:45:54,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... [2020-04-17 17:45:54,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 17:45:54,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 17:45:54,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 17:45:54,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 17:45:54,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 17:45:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 17:45:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 17:45:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 17:45:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 17:45:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 17:45:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 17:45:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 17:45:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 17:45:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 17:45:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 17:45:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 17:45:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 17:45:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 17:45:54,486 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 17:45:54,926 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 17:45:54,926 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 17:45:54,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:45:54 BoogieIcfgContainer [2020-04-17 17:45:54,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 17:45:54,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 17:45:54,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 17:45:54,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 17:45:54,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 05:45:53" (1/3) ... [2020-04-17 17:45:54,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11674262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:45:54, skipping insertion in model container [2020-04-17 17:45:54,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:45:54" (2/3) ... [2020-04-17 17:45:54,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11674262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:45:54, skipping insertion in model container [2020-04-17 17:45:54,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:45:54" (3/3) ... [2020-04-17 17:45:54,939 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2020-04-17 17:45:54,949 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 17:45:54,949 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 17:45:54,955 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 17:45:54,956 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 17:45:54,984 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,985 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,985 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,986 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,986 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,987 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,988 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,988 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,998 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,998 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,999 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:54,999 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,015 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,016 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,016 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,017 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,019 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,019 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,021 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,021 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:45:55,041 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 17:45:55,059 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 17:45:55,059 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 17:45:55,059 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 17:45:55,060 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 17:45:55,060 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 17:45:55,061 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 17:45:55,061 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 17:45:55,061 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 17:45:55,085 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-17 17:45:55,088 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 17:45:55,140 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 17:45:55,141 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:45:55,146 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:45:55,148 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 17:45:55,168 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 17:45:55,169 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:45:55,170 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 17:45:55,172 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 17:45:55,173 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 17:45:57,079 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2287 [2020-04-17 17:45:57,080 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-04-17 17:45:57,086 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-04-17 17:45:57,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 17:45:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 17:45:57,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 17:45:57,139 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:57,140 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:57,140 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:57,148 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times [2020-04-17 17:45:57,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:57,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431507136] [2020-04-17 17:45:57,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:57,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431507136] [2020-04-17 17:45:57,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:57,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:45:57,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486484816] [2020-04-17 17:45:57,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:45:57,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:57,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:45:57,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:45:57,390 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 17:45:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:57,445 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-04-17 17:45:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:45:57,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 17:45:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:57,466 INFO L225 Difference]: With dead ends: 290 [2020-04-17 17:45:57,467 INFO L226 Difference]: Without dead ends: 226 [2020-04-17 17:45:57,468 INFO L678 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 [2020-04-17 17:45:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-04-17 17:45:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-04-17 17:45:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 17:45:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-04-17 17:45:57,533 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-04-17 17:45:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:57,535 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-04-17 17:45:57,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:45:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-04-17 17:45:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 17:45:57,536 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:57,536 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:57,537 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:57,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:57,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1327041946, now seen corresponding path program 1 times [2020-04-17 17:45:57,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:57,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359817252] [2020-04-17 17:45:57,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:57,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359817252] [2020-04-17 17:45:57,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:57,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:45:57,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007370172] [2020-04-17 17:45:57,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:45:57,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:57,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:45:57,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:45:57,626 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-04-17 17:45:57,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:57,639 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-04-17 17:45:57,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:45:57,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-17 17:45:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:57,643 INFO L225 Difference]: With dead ends: 214 [2020-04-17 17:45:57,643 INFO L226 Difference]: Without dead ends: 214 [2020-04-17 17:45:57,644 INFO L678 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 [2020-04-17 17:45:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-04-17 17:45:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-04-17 17:45:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-04-17 17:45:57,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-04-17 17:45:57,674 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-04-17 17:45:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:57,675 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-04-17 17:45:57,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:45:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-04-17 17:45:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 17:45:57,679 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:57,679 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:57,680 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:57,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:57,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1811373379, now seen corresponding path program 1 times [2020-04-17 17:45:57,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:57,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91035068] [2020-04-17 17:45:57,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:57,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91035068] [2020-04-17 17:45:57,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:57,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:45:57,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827728751] [2020-04-17 17:45:57,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:45:57,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:57,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:45:57,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:45:57,798 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-04-17 17:45:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:57,824 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-04-17 17:45:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:45:57,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-17 17:45:57,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:57,826 INFO L225 Difference]: With dead ends: 240 [2020-04-17 17:45:57,827 INFO L226 Difference]: Without dead ends: 144 [2020-04-17 17:45:57,827 INFO L678 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 [2020-04-17 17:45:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-04-17 17:45:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-04-17 17:45:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-04-17 17:45:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-04-17 17:45:57,837 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-04-17 17:45:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:57,837 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-04-17 17:45:57,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:45:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-04-17 17:45:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 17:45:57,838 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:57,838 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:57,839 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:57,839 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times [2020-04-17 17:45:57,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:57,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934313016] [2020-04-17 17:45:57,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:57,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:57,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934313016] [2020-04-17 17:45:57,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:57,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:45:57,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606645454] [2020-04-17 17:45:57,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:45:57,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:57,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:45:57,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:45:57,978 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-04-17 17:45:58,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:58,025 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-04-17 17:45:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 17:45:58,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 17:45:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:58,027 INFO L225 Difference]: With dead ends: 164 [2020-04-17 17:45:58,028 INFO L226 Difference]: Without dead ends: 124 [2020-04-17 17:45:58,028 INFO L678 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 [2020-04-17 17:45:58,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-04-17 17:45:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-04-17 17:45:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-04-17 17:45:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-04-17 17:45:58,040 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-04-17 17:45:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:58,040 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-04-17 17:45:58,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:45:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-04-17 17:45:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 17:45:58,042 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:58,042 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:58,042 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:58,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:58,042 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times [2020-04-17 17:45:58,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:58,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259905078] [2020-04-17 17:45:58,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:58,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259905078] [2020-04-17 17:45:58,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:58,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:45:58,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985867997] [2020-04-17 17:45:58,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:45:58,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:58,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:45:58,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:45:58,144 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-04-17 17:45:58,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:58,198 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-04-17 17:45:58,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 17:45:58,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 17:45:58,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:58,199 INFO L225 Difference]: With dead ends: 122 [2020-04-17 17:45:58,200 INFO L226 Difference]: Without dead ends: 97 [2020-04-17 17:45:58,200 INFO L678 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 [2020-04-17 17:45:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-04-17 17:45:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-04-17 17:45:58,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-04-17 17:45:58,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-04-17 17:45:58,205 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-04-17 17:45:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:58,205 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-04-17 17:45:58,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:45:58,206 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-04-17 17:45:58,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 17:45:58,207 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:58,207 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:58,207 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:58,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:58,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times [2020-04-17 17:45:58,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:58,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154770388] [2020-04-17 17:45:58,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:58,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154770388] [2020-04-17 17:45:58,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:58,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:45:58,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820603810] [2020-04-17 17:45:58,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:45:58,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:58,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:45:58,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:45:58,242 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-04-17 17:45:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:58,253 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-04-17 17:45:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:45:58,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-17 17:45:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:58,255 INFO L225 Difference]: With dead ends: 115 [2020-04-17 17:45:58,255 INFO L226 Difference]: Without dead ends: 98 [2020-04-17 17:45:58,256 INFO L678 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 [2020-04-17 17:45:58,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-04-17 17:45:58,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-04-17 17:45:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-04-17 17:45:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-04-17 17:45:58,260 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-04-17 17:45:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:58,261 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-04-17 17:45:58,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:45:58,261 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-04-17 17:45:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 17:45:58,266 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:58,266 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:58,266 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:58,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:58,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times [2020-04-17 17:45:58,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:58,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731804770] [2020-04-17 17:45:58,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:58,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731804770] [2020-04-17 17:45:58,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:58,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 17:45:58,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890157759] [2020-04-17 17:45:58,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 17:45:58,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:58,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 17:45:58,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 17:45:58,365 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-04-17 17:45:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:58,423 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-04-17 17:45:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 17:45:58,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-04-17 17:45:58,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:58,424 INFO L225 Difference]: With dead ends: 92 [2020-04-17 17:45:58,424 INFO L226 Difference]: Without dead ends: 36 [2020-04-17 17:45:58,425 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 17:45:58,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-17 17:45:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-17 17:45:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-17 17:45:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-04-17 17:45:58,427 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-04-17 17:45:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:58,428 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-04-17 17:45:58,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 17:45:58,428 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-04-17 17:45:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 17:45:58,428 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:45:58,429 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:45:58,429 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:45:58,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:45:58,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1202444330, now seen corresponding path program 1 times [2020-04-17 17:45:58,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:45:58,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003707293] [2020-04-17 17:45:58,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:45:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:45:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 17:45:58,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003707293] [2020-04-17 17:45:58,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:45:58,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:45:58,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311677921] [2020-04-17 17:45:58,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:45:58,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:45:58,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:45:58,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:45:58,457 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-04-17 17:45:58,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:45:58,461 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-04-17 17:45:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:45:58,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-04-17 17:45:58,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:45:58,462 INFO L225 Difference]: With dead ends: 35 [2020-04-17 17:45:58,462 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 17:45:58,463 INFO L678 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 [2020-04-17 17:45:58,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 17:45:58,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 17:45:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 17:45:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 17:45:58,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-17 17:45:58,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:45:58,464 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 17:45:58,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:45:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 17:45:58,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 17:45:58,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 05:45:58 BasicIcfg [2020-04-17 17:45:58,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 17:45:58,471 INFO L168 Benchmark]: Toolchain (without parser) took 4973.48 ms. Allocated memory was 138.9 MB in the beginning and 245.4 MB in the end (delta: 106.4 MB). Free memory was 101.4 MB in the beginning and 147.9 MB in the end (delta: -46.5 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,472 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.19 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 159.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.13 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,475 INFO L168 Benchmark]: Boogie Preprocessor took 57.04 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,475 INFO L168 Benchmark]: RCFGBuilder took 510.08 ms. Allocated memory is still 203.4 MB. Free memory was 155.8 MB in the beginning and 133.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,476 INFO L168 Benchmark]: TraceAbstraction took 3536.35 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 133.6 MB in the beginning and 147.9 MB in the end (delta: -14.3 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-04-17 17:45:58,481 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.19 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 159.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.13 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.04 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 510.08 ms. Allocated memory is still 203.4 MB. Free memory was 155.8 MB in the beginning and 133.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3536.35 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 133.6 MB in the beginning and 147.9 MB in the end (delta: -14.3 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2287 CheckedPairsTotal, 56 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 144 SDtfs, 123 SDslu, 169 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...