/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/safe036_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:54:12,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:54:12,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:54:12,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:54:12,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:54:12,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:54:12,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:54:12,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:54:12,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:54:12,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:54:12,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:54:12,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:54:12,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:54:12,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:54:12,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:54:12,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:54:12,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:54:12,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:54:12,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:54:12,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:54:12,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:54:12,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:54:12,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:54:12,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:54:12,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:54:12,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:54:12,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:54:12,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:54:12,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:54:12,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:54:12,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:54:12,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:54:12,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:54:12,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:54:12,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:54:12,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:54:12,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:54:12,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:54:12,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:54:12,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:54:12,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:54:12,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:54:12,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:54:12,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:54:12,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:54:12,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:54:12,214 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:54:12,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:54:12,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:54:12,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:54:12,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:54:12,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:54:12,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:54:12,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:54:12,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:54:12,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:54:12,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:54:12,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:54:12,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:54:12,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:54:12,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:54:12,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:54:12,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:54:12,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:54:12,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:54:12,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:54:12,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:54:12,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:54:12,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:54:12,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:54:12,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:54:12,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:54:12,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:54:12,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:54:12,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:54:12,745 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:54:12,745 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:54:12,747 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.oepc.i [2020-09-11 15:54:12,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e97107423/99927f333e2947478477683d1f8b9b12/FLAG7b2042614 [2020-09-11 15:54:13,500 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:54:13,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe036_tso.oepc.i [2020-09-11 15:54:13,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e97107423/99927f333e2947478477683d1f8b9b12/FLAG7b2042614 [2020-09-11 15:54:13,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e97107423/99927f333e2947478477683d1f8b9b12 [2020-09-11 15:54:13,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:54:13,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:54:13,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:54:13,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:54:13,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:54:13,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:54:13" (1/1) ... [2020-09-11 15:54:13,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67abc2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:13, skipping insertion in model container [2020-09-11 15:54:13,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:54:13" (1/1) ... [2020-09-11 15:54:13,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:54:13,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:54:14,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:54:14,407 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:54:14,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:54:14,540 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:54:14,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14 WrapperNode [2020-09-11 15:54:14,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:54:14,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:54:14,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:54:14,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:54:14,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:54:14,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:54:14,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:54:14,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:54:14,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... [2020-09-11 15:54:14,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:54:14,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:54:14,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:54:14,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:54:14,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:54:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:54:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:54:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:54:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:54:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:54:14,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:54:14,711 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:54:15,056 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:54:15,057 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:54:15,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:54:15 BoogieIcfgContainer [2020-09-11 15:54:15,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:54:15,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:54:15,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:54:15,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:54:15,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:54:13" (1/3) ... [2020-09-11 15:54:15,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76366641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:54:15, skipping insertion in model container [2020-09-11 15:54:15,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:54:14" (2/3) ... [2020-09-11 15:54:15,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76366641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:54:15, skipping insertion in model container [2020-09-11 15:54:15,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:54:15" (3/3) ... [2020-09-11 15:54:15,073 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_tso.oepc.i [2020-09-11 15:54:15,085 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:54:15,086 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:54:15,096 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:54:15,097 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:54:15,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,124 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,124 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,125 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,125 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,127 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,139 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:54:15,169 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-11 15:54:15,192 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:54:15,193 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:54:15,193 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:54:15,193 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:54:15,193 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:54:15,193 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:54:15,194 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:54:15,194 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:54:15,212 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-09-11 15:54:15,215 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-09-11 15:54:15,261 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-09-11 15:54:15,262 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:54:15,267 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-11 15:54:15,270 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-09-11 15:54:15,290 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-09-11 15:54:15,290 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:54:15,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-11 15:54:15,293 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-11 15:54:15,295 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:54:16,810 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1294 [2020-09-11 15:54:16,811 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-11 15:54:16,817 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-11 15:54:16,831 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-11 15:54:16,834 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-11 15:54:16,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-11 15:54:16,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:16,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-11 15:54:16,844 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:16,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-09-11 15:54:16,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:16,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123059521] [2020-09-11 15:54:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:17,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123059521] [2020-09-11 15:54:17,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:17,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:54:17,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958261119] [2020-09-11 15:54:17,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:54:17,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:17,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:54:17,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:54:17,170 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-09-11 15:54:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:17,241 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-09-11 15:54:17,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:54:17,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-09-11 15:54:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:17,257 INFO L225 Difference]: With dead ends: 63 [2020-09-11 15:54:17,257 INFO L226 Difference]: Without dead ends: 40 [2020-09-11 15:54:17,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:54:17,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-11 15:54:17,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-11 15:54:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-11 15:54:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-09-11 15:54:17,309 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-09-11 15:54:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:17,310 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-09-11 15:54:17,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:54:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-09-11 15:54:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:54:17,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:17,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:17,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:54:17,312 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:17,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:17,312 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-09-11 15:54:17,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:17,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173881345] [2020-09-11 15:54:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:17,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173881345] [2020-09-11 15:54:17,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:17,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:54:17,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015991141] [2020-09-11 15:54:17,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:54:17,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:17,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:54:17,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:54:17,409 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-09-11 15:54:17,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:17,455 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-09-11 15:54:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:54:17,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-11 15:54:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:17,457 INFO L225 Difference]: With dead ends: 35 [2020-09-11 15:54:17,457 INFO L226 Difference]: Without dead ends: 28 [2020-09-11 15:54:17,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:54:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-11 15:54:17,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-11 15:54:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-11 15:54:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-09-11 15:54:17,463 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-09-11 15:54:17,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:17,463 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-09-11 15:54:17,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:54:17,464 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-09-11 15:54:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:54:17,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:17,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:17,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:54:17,465 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:17,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:17,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-09-11 15:54:17,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:17,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270480319] [2020-09-11 15:54:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:17,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270480319] [2020-09-11 15:54:17,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:17,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:54:17,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665466981] [2020-09-11 15:54:17,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:54:17,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:17,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:54:17,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:54:17,587 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-09-11 15:54:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:17,605 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-09-11 15:54:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:54:17,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:54:17,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:17,606 INFO L225 Difference]: With dead ends: 35 [2020-09-11 15:54:17,607 INFO L226 Difference]: Without dead ends: 22 [2020-09-11 15:54:17,607 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 [2020-09-11 15:54:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-11 15:54:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-11 15:54:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-11 15:54:17,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-09-11 15:54:17,611 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-09-11 15:54:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:17,611 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-09-11 15:54:17,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:54:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-09-11 15:54:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:54:17,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:54:17,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:54:17,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:54:17,613 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:54:17,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:54:17,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-09-11 15:54:17,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:54:17,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914703713] [2020-09-11 15:54:17,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:54:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:54:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:54:17,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914703713] [2020-09-11 15:54:17,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:54:17,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:54:17,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865117051] [2020-09-11 15:54:17,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:54:17,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:54:17,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:54:17,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:54:17,678 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-09-11 15:54:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:54:17,694 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-09-11 15:54:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:54:17,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:54:17,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:54:17,694 INFO L225 Difference]: With dead ends: 21 [2020-09-11 15:54:17,695 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:54:17,695 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 [2020-09-11 15:54:17,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:54:17,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:54:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:54:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:54:17,696 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-11 15:54:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:54:17,697 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:54:17,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:54:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:54:17,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:54:17,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:54:17,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:54:17 BasicIcfg [2020-09-11 15:54:17,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:54:17,707 INFO L168 Benchmark]: Toolchain (without parser) took 3964.86 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 101.1 MB in the beginning and 149.5 MB in the end (delta: -48.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:17,709 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:54:17,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.55 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 160.7 MB in the end (delta: -60.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:17,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 203.4 MB. Free memory was 160.7 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:17,712 INFO L168 Benchmark]: Boogie Preprocessor took 28.93 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:17,713 INFO L168 Benchmark]: RCFGBuilder took 434.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 137.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:17,714 INFO L168 Benchmark]: TraceAbstraction took 2638.48 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 137.0 MB in the beginning and 149.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-09-11 15:54:17,718 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.55 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 160.7 MB in the end (delta: -60.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 203.4 MB. Free memory was 160.7 MB in the beginning and 158.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.93 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 434.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 137.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2638.48 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 137.0 MB in the beginning and 149.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 357 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1294 CheckedPairsTotal, 49 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...