/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:47:52,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:47:52,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:47:52,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:47:52,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:47:52,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:47:52,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:47:52,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:47:52,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:47:52,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:47:52,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:47:52,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:47:52,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:47:52,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:47:52,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:47:52,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:47:52,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:47:52,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:47:52,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:47:52,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:47:52,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:47:52,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:47:52,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:47:52,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:47:52,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 00:47:52,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 00:47:52,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 00:47:52,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 00:47:52,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 00:47:52,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 00:47:52,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:47:52,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:47:52,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:47:52,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:47:52,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:47:52,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:47:52,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:47:52,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:47:52,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:47:52,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:47:52,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:47:52,255 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 [2020-09-17 00:47:52,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:47:52,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:47:52,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:47:52,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:47:52,293 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:47:52,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:47:52,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:47:52,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:47:52,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:47:52,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:47:52,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:47:52,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:47:52,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:47:52,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:47:52,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:47:52,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:47:52,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:47:52,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:47:52,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:47:52,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:47:52,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:47:52,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:47:52,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:47:52,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:47:52,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:47:52,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:47:52,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:47:52,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:47:52,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:47:52,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:47:52,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:47:52,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:47:52,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:47:52,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:47:52,775 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:47:52,776 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-17 00:47:52,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1d61ba5/b0e72da0dfb1454a8396587f07ac9dc3/FLAG0d999fcd9 [2020-09-17 00:47:53,475 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:47:53,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-17 00:47:53,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1d61ba5/b0e72da0dfb1454a8396587f07ac9dc3/FLAG0d999fcd9 [2020-09-17 00:47:53,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1d61ba5/b0e72da0dfb1454a8396587f07ac9dc3 [2020-09-17 00:47:53,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:47:53,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:47:53,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:47:53,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:47:53,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:47:53,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:47:53" (1/1) ... [2020-09-17 00:47:53,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f36f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:53, skipping insertion in model container [2020-09-17 00:47:53,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:47:53" (1/1) ... [2020-09-17 00:47:53,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:47:53,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:47:54,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:47:54,354 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:47:54,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:47:54,506 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:47:54,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54 WrapperNode [2020-09-17 00:47:54,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:47:54,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:47:54,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:47:54,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:47:54,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:47:54,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:47:54,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:47:54,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:47:54,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... [2020-09-17 00:47:54,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:47:54,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:47:54,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:47:54,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:47:54,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:47:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:47:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:47:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:47:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:47:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:47:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:47:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:47:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:47:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:47:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:47:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:47:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:47:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:47:54,710 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:47:55,084 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:47:55,084 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:47:55,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:47:55 BoogieIcfgContainer [2020-09-17 00:47:55,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:47:55,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:47:55,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:47:55,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:47:55,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:47:53" (1/3) ... [2020-09-17 00:47:55,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b00cadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:47:55, skipping insertion in model container [2020-09-17 00:47:55,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:47:54" (2/3) ... [2020-09-17 00:47:55,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b00cadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:47:55, skipping insertion in model container [2020-09-17 00:47:55,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:47:55" (3/3) ... [2020-09-17 00:47:55,100 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-09-17 00:47:55,114 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:47:55,114 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:47:55,125 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:47:55,126 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:47:55,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,182 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,182 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:47:55,220 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 00:47:55,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:47:55,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:47:55,250 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:47:55,250 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:47:55,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:47:55,251 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:47:55,251 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:47:55,251 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:47:55,271 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-17 00:47:55,274 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-17 00:47:55,329 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-17 00:47:55,329 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:47:55,341 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-17 00:47:55,345 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-17 00:47:55,383 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-17 00:47:55,383 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:47:55,384 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-17 00:47:55,388 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-17 00:47:55,390 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:47:57,071 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-09-17 00:47:57,071 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-17 00:47:57,076 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-17 00:47:57,098 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-17 00:47:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-17 00:47:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 00:47:57,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:57,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:57,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:57,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:57,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-09-17 00:47:57,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:57,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688110030] [2020-09-17 00:47:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:57,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688110030] [2020-09-17 00:47:57,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:57,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:47:57,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831416477] [2020-09-17 00:47:57,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:47:57,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:57,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:47:57,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:47:57,398 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-17 00:47:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:57,464 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-17 00:47:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:47:57,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-17 00:47:57,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:57,499 INFO L225 Difference]: With dead ends: 214 [2020-09-17 00:47:57,499 INFO L226 Difference]: Without dead ends: 166 [2020-09-17 00:47:57,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:47:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-17 00:47:57,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-17 00:47:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-17 00:47:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-17 00:47:57,588 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-17 00:47:57,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:57,590 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-17 00:47:57,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:47:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-17 00:47:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 00:47:57,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:57,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:57,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:47:57,593 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:57,593 INFO L82 PathProgramCache]: Analyzing trace with hash 658710541, now seen corresponding path program 1 times [2020-09-17 00:47:57,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:57,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530292879] [2020-09-17 00:47:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:57,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530292879] [2020-09-17 00:47:57,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:57,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:47:57,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973600907] [2020-09-17 00:47:57,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:47:57,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:57,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:47:57,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:47:57,692 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-17 00:47:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:57,725 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-09-17 00:47:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:47:57,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-17 00:47:57,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:57,727 INFO L225 Difference]: With dead ends: 220 [2020-09-17 00:47:57,728 INFO L226 Difference]: Without dead ends: 148 [2020-09-17 00:47:57,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:47:57,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-17 00:47:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-17 00:47:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-17 00:47:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-09-17 00:47:57,754 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 9 [2020-09-17 00:47:57,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:57,755 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-09-17 00:47:57,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:47:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-09-17 00:47:57,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:47:57,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:57,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:57,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:47:57,757 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:57,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:57,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 1 times [2020-09-17 00:47:57,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:57,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692388738] [2020-09-17 00:47:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:57,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692388738] [2020-09-17 00:47:57,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:57,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:47:57,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243065787] [2020-09-17 00:47:57,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:47:57,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:57,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:47:57,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:47:57,870 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 4 states. [2020-09-17 00:47:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:57,907 INFO L93 Difference]: Finished difference Result 168 states and 391 transitions. [2020-09-17 00:47:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:47:57,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-17 00:47:57,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:57,910 INFO L225 Difference]: With dead ends: 168 [2020-09-17 00:47:57,910 INFO L226 Difference]: Without dead ends: 126 [2020-09-17 00:47:57,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:47:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-17 00:47:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-09-17 00:47:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-17 00:47:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 291 transitions. [2020-09-17 00:47:57,922 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 291 transitions. Word has length 10 [2020-09-17 00:47:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:57,922 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 291 transitions. [2020-09-17 00:47:57,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:47:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-09-17 00:47:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:47:57,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:57,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:57,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:47:57,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:57,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186442, now seen corresponding path program 1 times [2020-09-17 00:47:57,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:57,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567984617] [2020-09-17 00:47:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:58,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567984617] [2020-09-17 00:47:58,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:58,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:47:58,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340809972] [2020-09-17 00:47:58,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:47:58,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:58,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:47:58,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:47:58,085 INFO L87 Difference]: Start difference. First operand 126 states and 291 transitions. Second operand 5 states. [2020-09-17 00:47:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:58,145 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-09-17 00:47:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:47:58,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-17 00:47:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:58,147 INFO L225 Difference]: With dead ends: 121 [2020-09-17 00:47:58,147 INFO L226 Difference]: Without dead ends: 93 [2020-09-17 00:47:58,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:47:58,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-17 00:47:58,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-17 00:47:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-17 00:47:58,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-09-17 00:47:58,155 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 11 [2020-09-17 00:47:58,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:58,156 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-09-17 00:47:58,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:47:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-09-17 00:47:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:47:58,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:58,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:58,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:47:58,158 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:58,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:58,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-09-17 00:47:58,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:58,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270319332] [2020-09-17 00:47:58,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:58,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:58,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270319332] [2020-09-17 00:47:58,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:58,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:47:58,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860040924] [2020-09-17 00:47:58,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:47:58,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:58,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:47:58,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:47:58,264 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 6 states. [2020-09-17 00:47:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:58,317 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-09-17 00:47:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:47:58,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-09-17 00:47:58,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:58,318 INFO L225 Difference]: With dead ends: 87 [2020-09-17 00:47:58,319 INFO L226 Difference]: Without dead ends: 78 [2020-09-17 00:47:58,319 INFO L675 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 [2020-09-17 00:47:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-17 00:47:58,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-17 00:47:58,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-17 00:47:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-09-17 00:47:58,324 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-09-17 00:47:58,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:58,324 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-09-17 00:47:58,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:47:58,325 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-09-17 00:47:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:47:58,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:58,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:58,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:47:58,327 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:58,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:58,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-09-17 00:47:58,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:58,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839054018] [2020-09-17 00:47:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:58,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839054018] [2020-09-17 00:47:58,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:58,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:47:58,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945552381] [2020-09-17 00:47:58,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:47:58,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:58,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:47:58,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:47:58,395 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-09-17 00:47:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:58,418 INFO L93 Difference]: Finished difference Result 129 states and 249 transitions. [2020-09-17 00:47:58,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:47:58,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-17 00:47:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:58,420 INFO L225 Difference]: With dead ends: 129 [2020-09-17 00:47:58,421 INFO L226 Difference]: Without dead ends: 48 [2020-09-17 00:47:58,421 INFO L675 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 [2020-09-17 00:47:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-17 00:47:58,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-17 00:47:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-17 00:47:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-09-17 00:47:58,430 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-09-17 00:47:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:58,430 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-09-17 00:47:58,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:47:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-09-17 00:47:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:47:58,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:47:58,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:47:58,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:47:58,434 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:47:58,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:47:58,435 INFO L82 PathProgramCache]: Analyzing trace with hash -109612871, now seen corresponding path program 2 times [2020-09-17 00:47:58,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:47:58,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611673390] [2020-09-17 00:47:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:47:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:47:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:47:58,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611673390] [2020-09-17 00:47:58,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:47:58,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:47:58,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417390629] [2020-09-17 00:47:58,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:47:58,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:47:58,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:47:58,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:47:58,546 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-09-17 00:47:58,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:47:58,563 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-09-17 00:47:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:47:58,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-17 00:47:58,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:47:58,564 INFO L225 Difference]: With dead ends: 47 [2020-09-17 00:47:58,564 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:47:58,566 INFO L675 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 [2020-09-17 00:47:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:47:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:47:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:47:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:47:58,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-17 00:47:58,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:47:58,568 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:47:58,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:47:58,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:47:58,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:47:58,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:47:58,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:47:58 BasicIcfg [2020-09-17 00:47:58,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:47:58,580 INFO L168 Benchmark]: Toolchain (without parser) took 4794.78 ms. Allocated memory was 140.5 MB in the beginning and 247.5 MB in the end (delta: 107.0 MB). Free memory was 102.5 MB in the beginning and 179.2 MB in the end (delta: -76.8 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,588 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.51 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 162.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.01 ms. Allocated memory is still 204.5 MB. Free memory was 162.4 MB in the beginning and 160.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,592 INFO L168 Benchmark]: Boogie Preprocessor took 40.80 ms. Allocated memory is still 204.5 MB. Free memory was 160.3 MB in the beginning and 159.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,593 INFO L168 Benchmark]: RCFGBuilder took 478.63 ms. Allocated memory is still 204.5 MB. Free memory was 158.4 MB in the beginning and 136.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,597 INFO L168 Benchmark]: TraceAbstraction took 3484.81 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 136.5 MB in the beginning and 179.2 MB in the end (delta: -42.7 MB). Peak memory consumption was 293.7 kB. Max. memory is 7.1 GB. [2020-09-17 00:47:58,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.51 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 162.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.01 ms. Allocated memory is still 204.5 MB. Free memory was 162.4 MB in the beginning and 160.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.80 ms. Allocated memory is still 204.5 MB. Free memory was 160.3 MB in the beginning and 159.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.63 ms. Allocated memory is still 204.5 MB. Free memory was 158.4 MB in the beginning and 136.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3484.81 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 136.5 MB in the beginning and 179.2 MB in the end (delta: -42.7 MB). Peak memory consumption was 293.7 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 608 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2133 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 131 SDtfs, 126 SDslu, 188 SDs, 0 SdLazy, 102 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...