/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:40:38,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:40:38,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:40:38,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:40:38,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:40:38,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:40:38,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:40:38,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:40:38,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:40:38,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:40:38,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:40:38,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:40:38,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:40:38,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:40:38,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:40:38,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:40:38,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:40:38,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:40:38,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:40:38,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:40:38,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:40:38,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:40:38,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:40:38,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:40:38,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:40:38,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:40:38,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:40:38,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:40:38,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:40:38,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:40:38,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:40:38,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:40:38,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:40:38,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:40:38,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:40:38,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:40:38,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:40:38,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:40:38,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:40:38,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:40:38,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:40:38,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2020-04-18 02:40:38,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:40:38,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:40:38,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:40:38,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:40:38,181 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:40:38,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:40:38,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:40:38,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:40:38,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:40:38,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:40:38,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:40:38,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:40:38,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:40:38,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:40:38,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:40:38,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:40:38,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:40:38,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:40:38,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:40:38,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:40:38,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:40:38,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:40:38,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:40:38,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:40:38,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:40:38,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:40:38,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:40:38,186 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:40:38,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:40:38,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:40:38,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:40:38,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:40:38,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:40:38,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:40:38,510 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:40:38,511 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-04-18 02:40:38,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8efefb9/988643b8c9854894bef95a21d85c9fda/FLAG764913359 [2020-04-18 02:40:39,164 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:40:39,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-04-18 02:40:39,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8efefb9/988643b8c9854894bef95a21d85c9fda/FLAG764913359 [2020-04-18 02:40:39,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8efefb9/988643b8c9854894bef95a21d85c9fda [2020-04-18 02:40:39,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:40:39,501 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:40:39,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:40:39,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:40:39,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:40:39,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:40:39" (1/1) ... [2020-04-18 02:40:39,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3690d037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:39, skipping insertion in model container [2020-04-18 02:40:39,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:40:39" (1/1) ... [2020-04-18 02:40:39,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:40:39,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:40:40,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:40:40,073 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:40:40,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:40:40,215 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:40:40,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40 WrapperNode [2020-04-18 02:40:40,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:40:40,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:40:40,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:40:40,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:40:40,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:40:40,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:40:40,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:40:40,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:40:40,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... [2020-04-18 02:40:40,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:40:40,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:40:40,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:40:40,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:40:40,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:40:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:40:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:40:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:40:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:40:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:40:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:40:40,416 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:40:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:40:40,416 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:40:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:40:40,416 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-18 02:40:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-18 02:40:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:40:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:40:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:40:40,419 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:40:40,850 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:40:40,850 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:40:40,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:40:40 BoogieIcfgContainer [2020-04-18 02:40:40,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:40:40,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:40:40,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:40:40,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:40:40,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:40:39" (1/3) ... [2020-04-18 02:40:40,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cabf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:40:40, skipping insertion in model container [2020-04-18 02:40:40,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:40:40" (2/3) ... [2020-04-18 02:40:40,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cabf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:40:40, skipping insertion in model container [2020-04-18 02:40:40,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:40:40" (3/3) ... [2020-04-18 02:40:40,870 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2020-04-18 02:40:40,881 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:40:40,881 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:40:40,888 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:40:40,889 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:40:40,920 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,922 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,922 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,923 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,923 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,924 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,924 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,924 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,925 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,925 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,926 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,926 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,927 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,928 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,928 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,928 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,929 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,930 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,930 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,930 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,931 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,931 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,932 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,932 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,940 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,940 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,941 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,941 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,957 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,958 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,958 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,958 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,961 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,961 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,962 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,962 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,966 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,966 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,967 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,967 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:40:40,983 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 02:40:41,004 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:40:41,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:40:41,005 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:40:41,005 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:40:41,005 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:40:41,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:40:41,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:40:41,006 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:40:41,031 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-18 02:40:41,034 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 02:40:41,091 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 02:40:41,091 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:40:41,099 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 02:40:41,102 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 02:40:41,127 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 02:40:41,127 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:40:41,128 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 02:40:41,131 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-18 02:40:41,132 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:40:42,562 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 02:40:42,637 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-18 02:40:42,637 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-18 02:40:42,644 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-18 02:40:42,754 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-18 02:40:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-18 02:40:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:40:42,780 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:42,781 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:42,782 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:42,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:42,790 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-18 02:40:42,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:42,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859806946] [2020-04-18 02:40:42,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:43,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859806946] [2020-04-18 02:40:43,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:43,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:40:43,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454881210] [2020-04-18 02:40:43,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 02:40:43,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:43,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 02:40:43,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:40:43,078 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-18 02:40:43,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:43,138 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-18 02:40:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 02:40:43,142 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-18 02:40:43,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:43,168 INFO L225 Difference]: With dead ends: 850 [2020-04-18 02:40:43,168 INFO L226 Difference]: Without dead ends: 706 [2020-04-18 02:40:43,169 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:40:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-18 02:40:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-18 02:40:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-18 02:40:43,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-18 02:40:43,298 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-18 02:40:43,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:43,299 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-18 02:40:43,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 02:40:43,299 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-18 02:40:43,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:40:43,301 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:43,302 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:43,302 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:43,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:43,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-18 02:40:43,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:43,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274244823] [2020-04-18 02:40:43,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:43,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274244823] [2020-04-18 02:40:43,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:43,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:40:43,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645536262] [2020-04-18 02:40:43,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:40:43,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:43,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:40:43,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:40:43,468 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-18 02:40:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:43,506 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-18 02:40:43,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:40:43,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:40:43,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:43,512 INFO L225 Difference]: With dead ends: 778 [2020-04-18 02:40:43,513 INFO L226 Difference]: Without dead ends: 634 [2020-04-18 02:40:43,514 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:43,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-18 02:40:43,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-18 02:40:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-18 02:40:43,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-18 02:40:43,542 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-18 02:40:43,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:43,543 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-18 02:40:43,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:40:43,543 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-18 02:40:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:40:43,545 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:43,546 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:43,546 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:43,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-04-18 02:40:43,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:43,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565451126] [2020-04-18 02:40:43,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:43,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565451126] [2020-04-18 02:40:43,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:43,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:40:43,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377213969] [2020-04-18 02:40:43,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:40:43,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:43,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:40:43,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:40:43,618 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-18 02:40:43,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:43,650 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-18 02:40:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:40:43,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:40:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:43,656 INFO L225 Difference]: With dead ends: 688 [2020-04-18 02:40:43,656 INFO L226 Difference]: Without dead ends: 580 [2020-04-18 02:40:43,657 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:43,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-18 02:40:43,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-18 02:40:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-18 02:40:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-18 02:40:43,680 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-18 02:40:43,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:43,680 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-18 02:40:43,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:40:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-18 02:40:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:40:43,685 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:43,685 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:43,685 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:43,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:43,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-18 02:40:43,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:43,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105778041] [2020-04-18 02:40:43,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:43,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105778041] [2020-04-18 02:40:43,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:43,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:40:43,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105691739] [2020-04-18 02:40:43,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:40:43,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:43,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:40:43,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:43,786 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-04-18 02:40:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:43,868 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-18 02:40:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:40:43,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-18 02:40:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:43,871 INFO L225 Difference]: With dead ends: 751 [2020-04-18 02:40:43,872 INFO L226 Difference]: Without dead ends: 358 [2020-04-18 02:40:43,872 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:40:43,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-18 02:40:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-18 02:40:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-18 02:40:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-18 02:40:43,886 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-18 02:40:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:43,887 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-18 02:40:43,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:40:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-18 02:40:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:40:43,888 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:43,888 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:43,888 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:43,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:43,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-18 02:40:43,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:43,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216757929] [2020-04-18 02:40:43,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:44,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216757929] [2020-04-18 02:40:44,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:44,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:40:44,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286897155] [2020-04-18 02:40:44,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:40:44,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:44,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:40:44,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:44,013 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-04-18 02:40:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:44,090 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-18 02:40:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:40:44,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 02:40:44,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:44,094 INFO L225 Difference]: With dead ends: 496 [2020-04-18 02:40:44,094 INFO L226 Difference]: Without dead ends: 262 [2020-04-18 02:40:44,094 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:40:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-18 02:40:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-18 02:40:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-18 02:40:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-18 02:40:44,124 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-18 02:40:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:44,125 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-18 02:40:44,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:40:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-18 02:40:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:40:44,126 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:44,126 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:44,126 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:44,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-18 02:40:44,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:44,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306957359] [2020-04-18 02:40:44,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:44,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306957359] [2020-04-18 02:40:44,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:44,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:40:44,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612435139] [2020-04-18 02:40:44,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:40:44,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:44,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:40:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:40:44,232 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-04-18 02:40:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:44,276 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-18 02:40:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:40:44,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-18 02:40:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:44,279 INFO L225 Difference]: With dead ends: 319 [2020-04-18 02:40:44,279 INFO L226 Difference]: Without dead ends: 238 [2020-04-18 02:40:44,279 INFO L678 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 [2020-04-18 02:40:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-18 02:40:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-18 02:40:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-18 02:40:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-18 02:40:44,288 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-18 02:40:44,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:44,288 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-18 02:40:44,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:40:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-18 02:40:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:40:44,290 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:44,290 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:44,290 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:44,290 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-18 02:40:44,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:44,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133839929] [2020-04-18 02:40:44,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:44,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133839929] [2020-04-18 02:40:44,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:44,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:40:44,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135040077] [2020-04-18 02:40:44,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:40:44,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:44,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:40:44,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:44,408 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-04-18 02:40:44,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:44,468 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-18 02:40:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:40:44,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-18 02:40:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:44,470 INFO L225 Difference]: With dead ends: 247 [2020-04-18 02:40:44,470 INFO L226 Difference]: Without dead ends: 182 [2020-04-18 02:40:44,471 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:40:44,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-18 02:40:44,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-18 02:40:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-18 02:40:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-18 02:40:44,477 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-18 02:40:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:44,478 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-18 02:40:44,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:40:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-18 02:40:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:40:44,479 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:44,479 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:44,479 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:44,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-18 02:40:44,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:44,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555754792] [2020-04-18 02:40:44,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:44,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555754792] [2020-04-18 02:40:44,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:44,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 02:40:44,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769127215] [2020-04-18 02:40:44,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:40:44,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:44,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:40:44,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:40:44,591 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-04-18 02:40:44,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:44,661 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-18 02:40:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:40:44,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-18 02:40:44,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:44,663 INFO L225 Difference]: With dead ends: 165 [2020-04-18 02:40:44,663 INFO L226 Difference]: Without dead ends: 132 [2020-04-18 02:40:44,663 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:40:44,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-18 02:40:44,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-18 02:40:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-18 02:40:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-18 02:40:44,670 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-18 02:40:44,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:44,672 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-18 02:40:44,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:40:44,677 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-18 02:40:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 02:40:44,679 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:44,680 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:44,680 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:44,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-18 02:40:44,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:44,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000416918] [2020-04-18 02:40:44,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:44,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000416918] [2020-04-18 02:40:44,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:44,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 02:40:44,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007155303] [2020-04-18 02:40:44,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 02:40:44,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:44,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 02:40:44,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:40:44,777 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-04-18 02:40:44,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:44,843 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-18 02:40:44,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 02:40:44,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-04-18 02:40:44,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:44,845 INFO L225 Difference]: With dead ends: 121 [2020-04-18 02:40:44,845 INFO L226 Difference]: Without dead ends: 112 [2020-04-18 02:40:44,845 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:40:44,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-18 02:40:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-18 02:40:44,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-18 02:40:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-18 02:40:44,849 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-18 02:40:44,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:44,850 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-18 02:40:44,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 02:40:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-18 02:40:44,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 02:40:44,851 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:44,851 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:44,851 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:44,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:44,851 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-18 02:40:44,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:44,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502822802] [2020-04-18 02:40:44,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:44,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502822802] [2020-04-18 02:40:44,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:44,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:40:44,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614407579] [2020-04-18 02:40:44,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:40:44,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:44,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:40:44,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:44,914 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-04-18 02:40:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:44,946 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-04-18 02:40:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:40:44,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-18 02:40:44,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:44,948 INFO L225 Difference]: With dead ends: 146 [2020-04-18 02:40:44,948 INFO L226 Difference]: Without dead ends: 52 [2020-04-18 02:40:44,950 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:40:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-18 02:40:44,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-18 02:40:44,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-18 02:40:44,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-18 02:40:44,952 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-04-18 02:40:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:44,953 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-18 02:40:44,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:40:44,953 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-18 02:40:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 02:40:44,953 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:40:44,953 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:40:44,954 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:40:44,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:40:44,954 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-04-18 02:40:44,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:40:44,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045532198] [2020-04-18 02:40:44,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:40:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:40:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:40:45,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045532198] [2020-04-18 02:40:45,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:40:45,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:40:45,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496621992] [2020-04-18 02:40:45,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:40:45,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:40:45,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:40:45,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:40:45,015 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-04-18 02:40:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:40:45,038 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-04-18 02:40:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:40:45,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-18 02:40:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:40:45,039 INFO L225 Difference]: With dead ends: 51 [2020-04-18 02:40:45,039 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:40:45,040 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:40:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:40:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:40:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:40:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:40:45,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-18 02:40:45,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:40:45,040 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:40:45,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:40:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:40:45,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:40:45,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:40:45 BasicIcfg [2020-04-18 02:40:45,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:40:45,048 INFO L168 Benchmark]: Toolchain (without parser) took 5566.84 ms. Allocated memory was 135.8 MB in the beginning and 253.8 MB in the end (delta: 118.0 MB). Free memory was 99.0 MB in the beginning and 101.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 115.7 MB. Max. memory is 7.1 GB. [2020-04-18 02:40:45,049 INFO L168 Benchmark]: CDTParser took 1.74 ms. Allocated memory is still 135.8 MB. Free memory is still 118.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:40:45,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.20 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 97.1 MB in the beginning and 155.6 MB in the end (delta: -58.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-04-18 02:40:45,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.16 ms. Allocated memory is still 199.2 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:40:45,059 INFO L168 Benchmark]: Boogie Preprocessor took 55.04 ms. Allocated memory is still 199.2 MB. Free memory was 153.5 MB in the beginning and 151.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:40:45,059 INFO L168 Benchmark]: RCFGBuilder took 505.50 ms. Allocated memory is still 199.2 MB. Free memory was 151.5 MB in the beginning and 127.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:40:45,062 INFO L168 Benchmark]: TraceAbstraction took 4183.95 ms. Allocated memory was 199.2 MB in the beginning and 253.8 MB in the end (delta: 54.5 MB). Free memory was 127.4 MB in the beginning and 101.3 MB in the end (delta: 26.1 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-04-18 02:40:45,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74 ms. Allocated memory is still 135.8 MB. Free memory is still 118.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.20 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 97.1 MB in the beginning and 155.6 MB in the end (delta: -58.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.16 ms. Allocated memory is still 199.2 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.04 ms. Allocated memory is still 199.2 MB. Free memory was 153.5 MB in the beginning and 151.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.50 ms. Allocated memory is still 199.2 MB. Free memory was 151.5 MB in the beginning and 127.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4183.95 ms. Allocated memory was 199.2 MB in the beginning and 253.8 MB in the end (delta: 54.5 MB). Free memory was 127.4 MB in the beginning and 101.3 MB in the end (delta: 26.1 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 933 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 267 SDtfs, 328 SDslu, 473 SDs, 0 SdLazy, 205 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...