/usr/bin/java -Xmx16000000000 -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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:06:31,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:06:31,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:06:31,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:06:31,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:06:31,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:06:31,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:06:31,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:06:31,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:06:31,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:06:31,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:06:31,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:06:31,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:06:31,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:06:31,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:06:31,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:06:31,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:06:31,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:06:31,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:06:31,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:06:31,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:06:31,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:06:31,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:06:31,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:06:31,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:06:31,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:06:31,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:06:31,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:06:31,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:06:31,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:06:31,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:06:31,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:06:31,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:06:31,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:06:31,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:06:31,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:06:31,245 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 [2020-10-11 15:06:31,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:06:31,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:06:31,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:06:31,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:06:31,290 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:06:31,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:06:31,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:06:31,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:06:31,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:06:31,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:06:31,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:06:31,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:06:31,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:06:31,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:06:31,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:06:31,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:06:31,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:06:31,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:06:31,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:06:31,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:06:31,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:06:31,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:06:31,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:06:31,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:06:31,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:06:31,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:06:31,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:06:31,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:06:31,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:06:31,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:06:31,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:06:31,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:06:31,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:06:31,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:06:31,622 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:06:31,623 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-11 15:06:31,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c5da4bd/7a7926bc792d4b8281e7e1bf0dc556d5/FLAGc2239adf1 [2020-10-11 15:06:32,227 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:06:32,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-11 15:06:32,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c5da4bd/7a7926bc792d4b8281e7e1bf0dc556d5/FLAGc2239adf1 [2020-10-11 15:06:32,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c5da4bd/7a7926bc792d4b8281e7e1bf0dc556d5 [2020-10-11 15:06:32,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:06:32,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:06:32,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:06:32,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:06:32,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:06:32,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:06:32" (1/1) ... [2020-10-11 15:06:32,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706b3994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:32, skipping insertion in model container [2020-10-11 15:06:32,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:06:32" (1/1) ... [2020-10-11 15:06:32,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:06:32,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:06:33,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:06:33,145 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:06:33,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:06:33,259 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:06:33,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33 WrapperNode [2020-10-11 15:06:33,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:06:33,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:06:33,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:06:33,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:06:33,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:06:33,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:06:33,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:06:33,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:06:33,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (1/1) ... [2020-10-11 15:06:33,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:06:33,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:06:33,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:06:33,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:06:33,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (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 [2020-10-11 15:06:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:06:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:06:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:06:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:06:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:06:33,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:06:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:06:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:06:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:06:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:06:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 15:06:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 15:06:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:06:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:06:33,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:06:33,404 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:06:33,787 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:06:33,788 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:06:33,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:06:33 BoogieIcfgContainer [2020-10-11 15:06:33,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:06:33,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:06:33,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:06:33,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:06:33,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:06:32" (1/3) ... [2020-10-11 15:06:33,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5e121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:06:33, skipping insertion in model container [2020-10-11 15:06:33,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:06:33" (2/3) ... [2020-10-11 15:06:33,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5e121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:06:33, skipping insertion in model container [2020-10-11 15:06:33,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:06:33" (3/3) ... [2020-10-11 15:06:33,800 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-10-11 15:06:33,813 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:06:33,813 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:06:33,821 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:06:33,822 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:06:33,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,855 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,855 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,855 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,855 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,857 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,857 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,861 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,861 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,861 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,862 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,872 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,872 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:06:33,893 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 15:06:33,913 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:06:33,913 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:06:33,913 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:06:33,914 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:06:33,914 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:06:33,914 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:06:33,914 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:06:33,914 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:06:33,928 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:06:33,931 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-11 15:06:33,933 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-11 15:06:33,935 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-11 15:06:33,981 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-11 15:06:33,981 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:06:33,987 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-11 15:06:33,990 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-11 15:06:35,700 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-11 15:06:35,952 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-11 15:06:35,953 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-11 15:06:35,959 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-11 15:06:36,006 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-11 15:06:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-11 15:06:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:06:36,019 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:36,020 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:36,020 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:36,026 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-11 15:06:36,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:36,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200445964] [2020-10-11 15:06:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:36,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200445964] [2020-10-11 15:06:36,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:36,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:06:36,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204022541] [2020-10-11 15:06:36,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:06:36,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:36,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:06:36,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:06:36,276 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-11 15:06:36,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:36,338 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-11 15:06:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:06:36,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 15:06:36,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:36,364 INFO L225 Difference]: With dead ends: 670 [2020-10-11 15:06:36,364 INFO L226 Difference]: Without dead ends: 526 [2020-10-11 15:06:36,365 INFO L673 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 [2020-10-11 15:06:36,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-11 15:06:36,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-11 15:06:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-11 15:06:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-11 15:06:36,486 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-11 15:06:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:36,487 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-11 15:06:36,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:06:36,488 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-11 15:06:36,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:06:36,490 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:36,490 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:36,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:06:36,491 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:36,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-11 15:06:36,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:36,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028144419] [2020-10-11 15:06:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:36,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028144419] [2020-10-11 15:06:36,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:36,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:06:36,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498010756] [2020-10-11 15:06:36,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:06:36,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:36,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:06:36,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:06:36,636 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-11 15:06:36,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:36,672 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-11 15:06:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:06:36,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:06:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:36,677 INFO L225 Difference]: With dead ends: 682 [2020-10-11 15:06:36,678 INFO L226 Difference]: Without dead ends: 394 [2020-10-11 15:06:36,679 INFO L673 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 [2020-10-11 15:06:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-11 15:06:36,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-11 15:06:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-11 15:06:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-11 15:06:36,701 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-11 15:06:36,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:36,701 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-11 15:06:36,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:06:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-11 15:06:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:06:36,703 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:36,704 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:36,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:06:36,704 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:36,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:36,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-11 15:06:36,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:36,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105458639] [2020-10-11 15:06:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:36,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105458639] [2020-10-11 15:06:36,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:36,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:06:36,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076510355] [2020-10-11 15:06:36,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:06:36,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:36,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:06:36,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:06:36,751 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-11 15:06:36,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:36,765 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-11 15:06:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:06:36,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-11 15:06:36,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:36,769 INFO L225 Difference]: With dead ends: 386 [2020-10-11 15:06:36,769 INFO L226 Difference]: Without dead ends: 386 [2020-10-11 15:06:36,770 INFO L673 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 [2020-10-11 15:06:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-11 15:06:36,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-11 15:06:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-11 15:06:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-11 15:06:36,785 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-11 15:06:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:36,786 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-11 15:06:36,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:06:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-11 15:06:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:06:36,788 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:36,789 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:36,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:06:36,789 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:36,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:36,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-11 15:06:36,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:36,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300370038] [2020-10-11 15:06:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:36,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:36,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300370038] [2020-10-11 15:06:36,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:36,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:06:36,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757160631] [2020-10-11 15:06:36,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:06:36,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:36,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:06:36,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:06:36,829 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-11 15:06:36,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:36,849 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-11 15:06:36,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:06:36,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-11 15:06:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:36,853 INFO L225 Difference]: With dead ends: 466 [2020-10-11 15:06:36,853 INFO L226 Difference]: Without dead ends: 402 [2020-10-11 15:06:36,854 INFO L673 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 [2020-10-11 15:06:36,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-11 15:06:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-11 15:06:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-11 15:06:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-11 15:06:36,868 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-11 15:06:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:36,869 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-11 15:06:36,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:06:36,869 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-11 15:06:36,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:06:36,870 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:36,871 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:36,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:06:36,871 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:36,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:36,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-11 15:06:36,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:36,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132032595] [2020-10-11 15:06:36,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:36,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132032595] [2020-10-11 15:06:36,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:36,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:06:36,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686894625] [2020-10-11 15:06:36,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:06:36,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:36,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:06:36,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:06:36,925 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-11 15:06:36,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:36,943 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-11 15:06:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:06:36,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-11 15:06:36,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:36,946 INFO L225 Difference]: With dead ends: 358 [2020-10-11 15:06:36,946 INFO L226 Difference]: Without dead ends: 358 [2020-10-11 15:06:36,947 INFO L673 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 [2020-10-11 15:06:36,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-11 15:06:36,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-11 15:06:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-11 15:06:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-11 15:06:36,959 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-11 15:06:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:36,960 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-11 15:06:36,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:06:36,960 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-11 15:06:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:06:36,961 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:36,961 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:36,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:06:36,962 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:36,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:36,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-11 15:06:36,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:36,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862638537] [2020-10-11 15:06:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862638537] [2020-10-11 15:06:37,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:06:37,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631943796] [2020-10-11 15:06:37,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:06:37,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:06:37,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:06:37,004 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-11 15:06:37,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,027 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-11 15:06:37,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:06:37,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-11 15:06:37,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,030 INFO L225 Difference]: With dead ends: 514 [2020-10-11 15:06:37,031 INFO L226 Difference]: Without dead ends: 274 [2020-10-11 15:06:37,031 INFO L673 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 [2020-10-11 15:06:37,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-11 15:06:37,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-11 15:06:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-11 15:06:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-11 15:06:37,041 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-11 15:06:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,041 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-11 15:06:37,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:06:37,042 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-11 15:06:37,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:06:37,042 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:37,043 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:37,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:06:37,043 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:37,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:37,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-11 15:06:37,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:37,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252858093] [2020-10-11 15:06:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252858093] [2020-10-11 15:06:37,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:06:37,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56175856] [2020-10-11 15:06:37,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:06:37,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:06:37,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:06:37,118 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-11 15:06:37,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,157 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-11 15:06:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:06:37,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-11 15:06:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,160 INFO L225 Difference]: With dead ends: 345 [2020-10-11 15:06:37,160 INFO L226 Difference]: Without dead ends: 252 [2020-10-11 15:06:37,161 INFO L673 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 [2020-10-11 15:06:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-11 15:06:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-11 15:06:37,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-11 15:06:37,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-11 15:06:37,170 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-11 15:06:37,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,170 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-11 15:06:37,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:06:37,170 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-11 15:06:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:06:37,171 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:37,171 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:37,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:06:37,172 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:37,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:37,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-11 15:06:37,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:37,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090934993] [2020-10-11 15:06:37,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090934993] [2020-10-11 15:06:37,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:06:37,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501479397] [2020-10-11 15:06:37,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:06:37,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:06:37,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:06:37,244 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-11 15:06:37,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,327 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-11 15:06:37,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:06:37,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:06:37,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,330 INFO L225 Difference]: With dead ends: 278 [2020-10-11 15:06:37,330 INFO L226 Difference]: Without dead ends: 203 [2020-10-11 15:06:37,330 INFO L673 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 [2020-10-11 15:06:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-11 15:06:37,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-11 15:06:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-11 15:06:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-11 15:06:37,344 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-11 15:06:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,346 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-11 15:06:37,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:06:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-11 15:06:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 15:06:37,347 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:37,347 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:37,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:06:37,348 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:37,348 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-11 15:06:37,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:37,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158361305] [2020-10-11 15:06:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158361305] [2020-10-11 15:06:37,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:06:37,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213667525] [2020-10-11 15:06:37,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:06:37,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:06:37,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:06:37,463 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-11 15:06:37,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,546 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-11 15:06:37,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:06:37,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-11 15:06:37,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,548 INFO L225 Difference]: With dead ends: 200 [2020-10-11 15:06:37,548 INFO L226 Difference]: Without dead ends: 162 [2020-10-11 15:06:37,549 INFO L673 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 [2020-10-11 15:06:37,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-11 15:06:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-11 15:06:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-11 15:06:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-11 15:06:37,555 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-11 15:06:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,556 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-11 15:06:37,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:06:37,556 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-11 15:06:37,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:06:37,557 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:37,557 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:37,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 15:06:37,557 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:37,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:37,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-11 15:06:37,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:37,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353109696] [2020-10-11 15:06:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353109696] [2020-10-11 15:06:37,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:06:37,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804864452] [2020-10-11 15:06:37,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:06:37,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:06:37,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:06:37,609 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-11 15:06:37,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,629 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-11 15:06:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:06:37,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-11 15:06:37,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,631 INFO L225 Difference]: With dead ends: 194 [2020-10-11 15:06:37,631 INFO L226 Difference]: Without dead ends: 127 [2020-10-11 15:06:37,632 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:06:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-11 15:06:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-11 15:06:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-11 15:06:37,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-11 15:06:37,636 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-11 15:06:37,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,638 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-11 15:06:37,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:06:37,638 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-11 15:06:37,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:06:37,639 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:37,639 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:37,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 15:06:37,639 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:37,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:37,640 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-11 15:06:37,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:37,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790532254] [2020-10-11 15:06:37,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790532254] [2020-10-11 15:06:37,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 15:06:37,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828435436] [2020-10-11 15:06:37,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 15:06:37,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 15:06:37,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:06:37,741 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-11 15:06:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,815 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-11 15:06:37,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 15:06:37,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-11 15:06:37,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,816 INFO L225 Difference]: With dead ends: 120 [2020-10-11 15:06:37,816 INFO L226 Difference]: Without dead ends: 71 [2020-10-11 15:06:37,817 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:06:37,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-11 15:06:37,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-11 15:06:37,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-11 15:06:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-11 15:06:37,821 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-11 15:06:37,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,822 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-11 15:06:37,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 15:06:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-11 15:06:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-11 15:06:37,822 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:06:37,823 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:06:37,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 15:06:37,824 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:06:37,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:06:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-11 15:06:37,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:06:37,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696732223] [2020-10-11 15:06:37,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:06:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:06:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:06:37,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696732223] [2020-10-11 15:06:37,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:06:37,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:06:37,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952652156] [2020-10-11 15:06:37,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:06:37,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:06:37,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:06:37,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:06:37,892 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-11 15:06:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:06:37,904 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-11 15:06:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:06:37,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-11 15:06:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:06:37,905 INFO L225 Difference]: With dead ends: 70 [2020-10-11 15:06:37,905 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:06:37,906 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:06:37,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:06:37,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:06:37,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:06:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:06:37,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-11 15:06:37,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:06:37,907 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:06:37,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:06:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:06:37,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:06:37,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 15:06:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:06:37 BasicIcfg [2020-10-11 15:06:37,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:06:37,918 INFO L168 Benchmark]: Toolchain (without parser) took 5366.40 ms. Allocated memory was 252.2 MB in the beginning and 422.6 MB in the end (delta: 170.4 MB). Free memory was 204.9 MB in the beginning and 314.6 MB in the end (delta: -109.6 MB). Peak memory consumption was 60.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,919 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 252.2 MB. Free memory was 227.7 MB in the beginning and 226.9 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.18 ms. Allocated memory was 252.2 MB in the beginning and 318.8 MB in the end (delta: 66.6 MB). Free memory was 204.1 MB in the beginning and 272.6 MB in the end (delta: -68.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.36 ms. Allocated memory is still 318.8 MB. Free memory was 272.6 MB in the beginning and 270.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,923 INFO L168 Benchmark]: Boogie Preprocessor took 28.38 ms. Allocated memory is still 318.8 MB. Free memory was 270.9 MB in the beginning and 269.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,927 INFO L168 Benchmark]: RCFGBuilder took 454.37 ms. Allocated memory is still 318.8 MB. Free memory was 269.2 MB in the beginning and 244.8 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,927 INFO L168 Benchmark]: TraceAbstraction took 4121.49 ms. Allocated memory was 318.8 MB in the beginning and 422.6 MB in the end (delta: 103.8 MB). Free memory was 243.9 MB in the beginning and 314.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:06:37,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 252.2 MB. Free memory was 227.7 MB in the beginning and 226.9 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 711.18 ms. Allocated memory was 252.2 MB in the beginning and 318.8 MB in the end (delta: 66.6 MB). Free memory was 204.1 MB in the beginning and 272.6 MB in the end (delta: -68.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.36 ms. Allocated memory is still 318.8 MB. Free memory was 272.6 MB in the beginning and 270.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.38 ms. Allocated memory is still 318.8 MB. Free memory was 270.9 MB in the beginning and 269.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 454.37 ms. Allocated memory is still 318.8 MB. Free memory was 269.2 MB in the beginning and 244.8 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4121.49 ms. Allocated memory was 318.8 MB in the beginning and 422.6 MB in the end (delta: 103.8 MB). Free memory was 243.9 MB in the beginning and 314.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 MoverChecksTotal - 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...