/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/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:10:38,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:10:38,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:10:38,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:10:38,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:10:38,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:10:38,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:10:38,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:10:38,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:10:38,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:10:38,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:10:38,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:10:38,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:10:38,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:10:38,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:10:38,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:10:38,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:10:38,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:10:38,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:10:38,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:10:38,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:10:38,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:10:38,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:10:38,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:10:38,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:10:38,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:10:38,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:10:38,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:10:38,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:10:38,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:10:38,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:10:38,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:10:38,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:10:38,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:10:38,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:10:38,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:10:38,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:10:38,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:10:38,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:10:38,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:10:38,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:10:38,171 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 15:10:38,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:10:38,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:10:38,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:10:38,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:10:38,213 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:10:38,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:10:38,213 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:10:38,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:10:38,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:10:38,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:10:38,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:10:38,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:10:38,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:10:38,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:10:38,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:10:38,216 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:10:38,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:10:38,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:10:38,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:10:38,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:10:38,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:10:38,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:10:38,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:10:38,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:10:38,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:10:38,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:10:38,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:10:38,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:10:38,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:10:38,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:10:38,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:10:38,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:10:38,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:10:38,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:10:38,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:10:38,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-10-11 15:10:38,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48dc1b20f/31ee72f05e7f4d699659a3cfa1a3d202/FLAGf270466eb [2020-10-11 15:10:39,090 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:10:39,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-10-11 15:10:39,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48dc1b20f/31ee72f05e7f4d699659a3cfa1a3d202/FLAGf270466eb [2020-10-11 15:10:39,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48dc1b20f/31ee72f05e7f4d699659a3cfa1a3d202 [2020-10-11 15:10:39,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:10:39,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:10:39,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:10:39,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:10:39,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:10:39,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:10:39" (1/1) ... [2020-10-11 15:10:39,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9bb26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:39, skipping insertion in model container [2020-10-11 15:10:39,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:10:39" (1/1) ... [2020-10-11 15:10:39,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:10:39,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:10:40,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:10:40,029 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:10:40,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:10:40,148 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:10:40,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40 WrapperNode [2020-10-11 15:10:40,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:10:40,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:10:40,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:10:40,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:10:40,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:10:40,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:10:40,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:10:40,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:10:40,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (1/1) ... [2020-10-11 15:10:40,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:10:40,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:10:40,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:10:40,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:10:40,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (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 15:10:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:10:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:10:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:10:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:10:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:10:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:10:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:10:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:10:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:10:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:10:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:10:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:10:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:10:40,299 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 15:10:40,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:10:40,624 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:10:40,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:10:40 BoogieIcfgContainer [2020-10-11 15:10:40,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:10:40,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:10:40,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:10:40,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:10:40,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:10:39" (1/3) ... [2020-10-11 15:10:40,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c0f753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:10:40, skipping insertion in model container [2020-10-11 15:10:40,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:10:40" (2/3) ... [2020-10-11 15:10:40,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c0f753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:10:40, skipping insertion in model container [2020-10-11 15:10:40,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:10:40" (3/3) ... [2020-10-11 15:10:40,637 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-10-11 15:10:40,651 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:10:40,652 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:10:40,659 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:10:40,660 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:10:40,691 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,692 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,692 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,695 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,702 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,703 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,738 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,739 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:10:40,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:10:40,794 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:10:40,794 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:10:40,794 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:10:40,795 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:10:40,795 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:10:40,795 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:10:40,795 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:10:40,795 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:10:40,809 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:10:40,811 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-11 15:10:40,813 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-11 15:10:40,815 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-11 15:10:40,864 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-11 15:10:40,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:10:40,870 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 49 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. [2020-10-11 15:10:40,873 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:10:42,203 INFO L132 LiptonReduction]: Checked pairs total: 2465 [2020-10-11 15:10:42,203 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-11 15:10:42,210 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-11 15:10:42,240 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-11 15:10:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-11 15:10:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:10:42,250 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:42,251 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:10:42,251 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:42,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:42,258 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-10-11 15:10:42,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:42,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726537042] [2020-10-11 15:10:42,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:42,450 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 15:10:42,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726537042] [2020-10-11 15:10:42,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:42,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:10:42,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100054689] [2020-10-11 15:10:42,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:10:42,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:42,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:10:42,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:10:42,477 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-11 15:10:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:42,513 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-11 15:10:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:10:42,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-11 15:10:42,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:42,532 INFO L225 Difference]: With dead ends: 362 [2020-10-11 15:10:42,533 INFO L226 Difference]: Without dead ends: 298 [2020-10-11 15:10:42,534 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:10:42,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-11 15:10:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-11 15:10:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-11 15:10:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-11 15:10:42,611 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-11 15:10:42,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:42,612 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-11 15:10:42,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:10:42,612 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-11 15:10:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:10:42,614 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:42,614 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:10:42,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:10:42,614 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:42,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-10-11 15:10:42,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:42,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175028458] [2020-10-11 15:10:42,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:42,728 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 15:10:42,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175028458] [2020-10-11 15:10:42,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:42,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:10:42,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349743148] [2020-10-11 15:10:42,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:10:42,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:42,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:10:42,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:10:42,732 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-11 15:10:42,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:42,751 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-11 15:10:42,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:10:42,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-11 15:10:42,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:42,754 INFO L225 Difference]: With dead ends: 217 [2020-10-11 15:10:42,755 INFO L226 Difference]: Without dead ends: 217 [2020-10-11 15:10:42,755 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 15:10:42,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-11 15:10:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-11 15:10:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-11 15:10:42,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-11 15:10:42,777 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-11 15:10:42,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:42,778 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-11 15:10:42,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:10:42,778 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-11 15:10:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:10:42,780 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:42,780 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:10:42,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:10:42,780 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:42,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:42,781 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-10-11 15:10:42,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:42,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992918701] [2020-10-11 15:10:42,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:42,848 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 15:10:42,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992918701] [2020-10-11 15:10:42,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:42,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:10:42,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85212628] [2020-10-11 15:10:42,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:10:42,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:42,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:10:42,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:10:42,851 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-11 15:10:42,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:42,878 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-11 15:10:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:10:42,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:10:42,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:42,880 INFO L225 Difference]: With dead ends: 136 [2020-10-11 15:10:42,880 INFO L226 Difference]: Without dead ends: 136 [2020-10-11 15:10:42,881 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:10:42,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-11 15:10:42,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-11 15:10:42,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-11 15:10:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-11 15:10:42,890 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-11 15:10:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:42,890 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-11 15:10:42,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:10:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-11 15:10:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:10:42,892 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:42,892 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:10:42,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:10:42,893 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:42,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:42,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-10-11 15:10:42,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:42,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610637111] [2020-10-11 15:10:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:42,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:10:42,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610637111] [2020-10-11 15:10:42,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:42,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:10:42,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550694950] [2020-10-11 15:10:42,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:10:42,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:42,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:10:42,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:10:42,969 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-11 15:10:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:43,011 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-11 15:10:43,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:10:43,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:10:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:43,013 INFO L225 Difference]: With dead ends: 109 [2020-10-11 15:10:43,013 INFO L226 Difference]: Without dead ends: 109 [2020-10-11 15:10:43,014 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:10:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-11 15:10:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-11 15:10:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-11 15:10:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-11 15:10:43,019 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-11 15:10:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:43,019 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-11 15:10:43,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:10:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-11 15:10:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:10:43,021 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:43,021 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 15:10:43,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:10:43,022 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:43,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:43,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-10-11 15:10:43,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:43,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098269366] [2020-10-11 15:10:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:43,093 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 15:10:43,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098269366] [2020-10-11 15:10:43,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:43,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:10:43,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910804811] [2020-10-11 15:10:43,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:10:43,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:43,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:10:43,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:10:43,095 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-11 15:10:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:43,135 INFO L93 Difference]: Finished difference Result 174 states and 369 transitions. [2020-10-11 15:10:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:10:43,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:10:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:43,137 INFO L225 Difference]: With dead ends: 174 [2020-10-11 15:10:43,137 INFO L226 Difference]: Without dead ends: 136 [2020-10-11 15:10:43,138 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:10:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-11 15:10:43,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2020-10-11 15:10:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-11 15:10:43,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 239 transitions. [2020-10-11 15:10:43,143 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 239 transitions. Word has length 18 [2020-10-11 15:10:43,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:43,144 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 239 transitions. [2020-10-11 15:10:43,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:10:43,144 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 239 transitions. [2020-10-11 15:10:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:10:43,145 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:43,145 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 15:10:43,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:10:43,146 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:43,146 INFO L82 PathProgramCache]: Analyzing trace with hash 645557555, now seen corresponding path program 2 times [2020-10-11 15:10:43,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:43,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643407622] [2020-10-11 15:10:43,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:43,249 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 15:10:43,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643407622] [2020-10-11 15:10:43,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:43,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:10:43,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830035825] [2020-10-11 15:10:43,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:10:43,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:43,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:10:43,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:10:43,252 INFO L87 Difference]: Start difference. First operand 109 states and 239 transitions. Second operand 5 states. [2020-10-11 15:10:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:43,314 INFO L93 Difference]: Finished difference Result 176 states and 358 transitions. [2020-10-11 15:10:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:10:43,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:10:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:43,315 INFO L225 Difference]: With dead ends: 176 [2020-10-11 15:10:43,316 INFO L226 Difference]: Without dead ends: 124 [2020-10-11 15:10:43,316 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:10:43,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-11 15:10:43,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-10-11 15:10:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-11 15:10:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 232 transitions. [2020-10-11 15:10:43,324 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 232 transitions. Word has length 18 [2020-10-11 15:10:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:43,324 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 232 transitions. [2020-10-11 15:10:43,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:10:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 232 transitions. [2020-10-11 15:10:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:10:43,325 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:43,326 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 15:10:43,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:10:43,326 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:43,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:43,326 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 3 times [2020-10-11 15:10:43,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:43,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241246322] [2020-10-11 15:10:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:43,376 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 15:10:43,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241246322] [2020-10-11 15:10:43,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:43,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:10:43,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554641182] [2020-10-11 15:10:43,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:10:43,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:43,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:10:43,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:10:43,379 INFO L87 Difference]: Start difference. First operand 109 states and 232 transitions. Second operand 5 states. [2020-10-11 15:10:43,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:43,439 INFO L93 Difference]: Finished difference Result 175 states and 348 transitions. [2020-10-11 15:10:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 15:10:43,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-11 15:10:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:43,441 INFO L225 Difference]: With dead ends: 175 [2020-10-11 15:10:43,441 INFO L226 Difference]: Without dead ends: 55 [2020-10-11 15:10:43,441 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-11 15:10:43,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-11 15:10:43,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-11 15:10:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-11 15:10:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-11 15:10:43,444 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-11 15:10:43,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:43,444 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-11 15:10:43,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:10:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-11 15:10:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 15:10:43,445 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:10:43,445 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 15:10:43,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:10:43,446 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:10:43,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:10:43,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1271535879, now seen corresponding path program 4 times [2020-10-11 15:10:43,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:10:43,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327190305] [2020-10-11 15:10:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:10:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:10:43,486 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 15:10:43,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327190305] [2020-10-11 15:10:43,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:10:43,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:10:43,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482190075] [2020-10-11 15:10:43,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:10:43,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:10:43,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:10:43,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:10:43,489 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-11 15:10:43,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:10:43,504 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-11 15:10:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:10:43,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-11 15:10:43,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:10:43,505 INFO L225 Difference]: With dead ends: 54 [2020-10-11 15:10:43,505 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:10:43,505 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 15:10:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:10:43,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:10:43,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:10:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:10:43,506 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-11 15:10:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:10:43,507 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:10:43,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:10:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:10:43,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:10:43,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:10:43,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:10:43 BasicIcfg [2020-10-11 15:10:43,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:10:43,514 INFO L168 Benchmark]: Toolchain (without parser) took 4128.50 ms. Allocated memory was 253.2 MB in the beginning and 373.3 MB in the end (delta: 120.1 MB). Free memory was 209.0 MB in the beginning and 273.3 MB in the end (delta: -64.3 MB). Peak memory consumption was 55.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:10:43,515 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:10:43,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.15 ms. Allocated memory was 253.2 MB in the beginning and 321.4 MB in the end (delta: 68.2 MB). Free memory was 209.0 MB in the beginning and 274.9 MB in the end (delta: -65.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:10:43,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.36 ms. Allocated memory is still 321.4 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:10:43,518 INFO L168 Benchmark]: Boogie Preprocessor took 28.63 ms. Allocated memory is still 321.4 MB. Free memory was 274.9 MB in the beginning and 272.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:10:43,518 INFO L168 Benchmark]: RCFGBuilder took 396.45 ms. Allocated memory is still 321.4 MB. Free memory was 272.4 MB in the beginning and 250.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:10:43,519 INFO L168 Benchmark]: TraceAbstraction took 2882.77 ms. Allocated memory was 321.4 MB in the beginning and 373.3 MB in the end (delta: 51.9 MB). Free memory was 250.4 MB in the beginning and 273.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:10:43,524 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 763.15 ms. Allocated memory was 253.2 MB in the beginning and 321.4 MB in the end (delta: 68.2 MB). Free memory was 209.0 MB in the beginning and 274.9 MB in the end (delta: -65.9 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.36 ms. Allocated memory is still 321.4 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.63 ms. Allocated memory is still 321.4 MB. Free memory was 274.9 MB in the beginning and 272.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 396.45 ms. Allocated memory is still 321.4 MB. Free memory was 272.4 MB in the beginning and 250.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2882.77 ms. Allocated memory was 321.4 MB in the beginning and 373.3 MB in the end (delta: 51.9 MB). Free memory was 250.4 MB in the beginning and 273.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 77 PlacesBefore, 32 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 2465 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 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 162 SDtfs, 105 SDslu, 267 SDs, 0 SdLazy, 91 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 42 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814 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...