/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:32:34,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:32:34,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:32:34,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:32:34,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:32:34,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:32:34,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:32:34,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:32:34,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:32:34,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:32:34,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:32:34,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:32:34,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:32:34,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:32:34,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:32:34,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:32:34,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:32:34,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:32:34,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:32:34,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:32:34,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:32:34,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:32:34,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:32:34,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:32:34,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:32:34,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:32:34,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:32:34,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:32:34,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:32:34,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:32:34,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:32:34,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:32:34,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:32:34,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:32:34,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:32:34,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:32:34,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:32:34,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:32:34,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:32:34,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:32:34,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:32:34,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:32:34,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:32:34,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:32:34,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:32:34,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:32:34,205 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:32:34,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:32:34,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:32:34,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:32:34,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:32:34,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:32:34,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:32:34,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:32:34,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:32:34,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:32:34,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:32:34,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:32:34,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:32:34,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:32:34,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:32:34,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:32:34,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:32:34,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:32:34,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:32:34,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:32:34,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:32:34,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:32:34,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:32:34,210 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:32:34,210 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:32:34,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:32:34,211 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:32:34,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:32:34,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:32:34,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:32:34,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:32:34,538 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:32:34,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-10-22 00:32:34,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0af62d6ec/790af26767334040b8a427b6225e0b48/FLAG9b620f63d [2020-10-22 00:32:35,152 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:32:35,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-10-22 00:32:35,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0af62d6ec/790af26767334040b8a427b6225e0b48/FLAG9b620f63d [2020-10-22 00:32:35,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0af62d6ec/790af26767334040b8a427b6225e0b48 [2020-10-22 00:32:35,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:32:35,470 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:32:35,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:32:35,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:32:35,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:32:35,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:32:35" (1/1) ... [2020-10-22 00:32:35,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bf2dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:35, skipping insertion in model container [2020-10-22 00:32:35,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:32:35" (1/1) ... [2020-10-22 00:32:35,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:32:35,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:32:36,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:32:36,061 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:32:36,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:32:36,252 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:32:36,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36 WrapperNode [2020-10-22 00:32:36,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:32:36,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:32:36,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:32:36,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:32:36,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:32:36,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:32:36,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:32:36,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:32:36,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... [2020-10-22 00:32:36,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:32:36,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:32:36,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:32:36,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:32:36,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:32:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:32:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:32:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:32:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:32:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:32:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:32:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:32:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:32:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:32:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:32:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:32:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:32:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:32:36,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:32:36,409 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:32:36,834 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:32:36,834 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:32:36,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:32:36 BoogieIcfgContainer [2020-10-22 00:32:36,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:32:36,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:32:36,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:32:36,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:32:36,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:32:35" (1/3) ... [2020-10-22 00:32:36,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ade25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:32:36, skipping insertion in model container [2020-10-22 00:32:36,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:32:36" (2/3) ... [2020-10-22 00:32:36,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ade25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:32:36, skipping insertion in model container [2020-10-22 00:32:36,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:32:36" (3/3) ... [2020-10-22 00:32:36,847 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-10-22 00:32:36,860 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:32:36,860 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:32:36,872 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:32:36,873 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:32:36,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,920 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,923 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,924 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:32:36,926 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:32:36,941 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:32:36,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:32:36,962 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:32:36,962 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:32:36,962 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:32:36,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:32:36,962 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:32:36,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:32:36,963 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:32:36,976 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:32:36,977 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 00:32:36,979 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 00:32:36,980 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-22 00:32:37,034 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-22 00:32:37,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:32:37,042 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:32:37,045 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:32:38,178 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-22 00:32:38,624 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 00:32:38,736 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-10-22 00:32:38,737 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-22 00:32:38,745 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 00:32:38,792 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 00:32:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 00:32:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:32:38,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:32:38,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:32:38,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:32:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:32:38,828 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-10-22 00:32:38,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:32:38,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920670228] [2020-10-22 00:32:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:32:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:32:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:32:39,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920670228] [2020-10-22 00:32:39,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:32:39,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:32:39,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [476816013] [2020-10-22 00:32:39,079 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:32:39,082 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:32:39,101 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:32:39,101 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:32:39,106 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:32:39,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:32:39,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:32:39,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:32:39,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:32:39,130 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 00:32:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:32:39,152 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 00:32:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:32:39,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 00:32:39,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:32:39,171 INFO L225 Difference]: With dead ends: 362 [2020-10-22 00:32:39,171 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 00:32:39,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:32:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 00:32:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 00:32:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 00:32:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 00:32:39,255 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 00:32:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:32:39,257 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 00:32:39,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:32:39,257 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 00:32:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:32:39,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:32:39,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:32:39,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:32:39,259 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:32:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:32:39,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-10-22 00:32:39,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:32:39,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593431965] [2020-10-22 00:32:39,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:32:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:32:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:32:39,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593431965] [2020-10-22 00:32:39,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:32:39,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:32:39,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1559751127] [2020-10-22 00:32:39,398 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:32:39,400 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:32:39,402 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 00:32:39,402 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:32:39,402 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:32:39,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:32:39,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:32:39,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:32:39,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:32:39,405 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-22 00:32:39,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:32:39,433 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-22 00:32:39,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:32:39,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 00:32:39,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:32:39,440 INFO L225 Difference]: With dead ends: 217 [2020-10-22 00:32:39,442 INFO L226 Difference]: Without dead ends: 217 [2020-10-22 00:32:39,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:32:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-22 00:32:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-22 00:32:39,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-22 00:32:39,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-22 00:32:39,472 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-22 00:32:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:32:39,473 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-22 00:32:39,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:32:39,475 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-22 00:32:39,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:32:39,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:32:39,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:32:39,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:32:39,480 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:32:39,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:32:39,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-10-22 00:32:39,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:32:39,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313038842] [2020-10-22 00:32:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:32:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:32:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:32:39,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313038842] [2020-10-22 00:32:39,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:32:39,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:32:39,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1438780416] [2020-10-22 00:32:39,569 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:32:39,570 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:32:39,573 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-10-22 00:32:39,573 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:32:39,721 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2430#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:32:39,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:32:39,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:32:39,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:32:39,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:32:39,722 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-10-22 00:32:39,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:32:39,750 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-22 00:32:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:32:39,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:32:39,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:32:39,767 INFO L225 Difference]: With dead ends: 136 [2020-10-22 00:32:39,768 INFO L226 Difference]: Without dead ends: 136 [2020-10-22 00:32:39,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:32:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-22 00:32:39,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-22 00:32:39,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-22 00:32:39,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-22 00:32:39,776 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-22 00:32:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:32:39,776 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-22 00:32:39,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:32:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-22 00:32:39,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:32:39,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:32:39,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:32:39,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:32:39,778 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:32:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:32:39,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-10-22 00:32:39,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:32:39,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767824104] [2020-10-22 00:32:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:32:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:32:39,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:32:39,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767824104] [2020-10-22 00:32:39,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:32:39,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:32:39,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [666438954] [2020-10-22 00:32:39,915 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:32:39,917 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:32:39,925 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 90 transitions. [2020-10-22 00:32:39,925 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:32:40,281 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2844#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:32:40,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 00:32:40,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:32:40,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 00:32:40,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:32:40,282 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-10-22 00:32:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:32:40,335 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-22 00:32:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:32:40,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-22 00:32:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:32:40,338 INFO L225 Difference]: With dead ends: 109 [2020-10-22 00:32:40,338 INFO L226 Difference]: Without dead ends: 109 [2020-10-22 00:32:40,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:32:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-22 00:32:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-22 00:32:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-22 00:32:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-22 00:32:40,346 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-22 00:32:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:32:40,347 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-22 00:32:40,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 00:32:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-22 00:32:40,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:32:40,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:32:40,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:32:40,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:32:40,351 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:32:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:32:40,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-10-22 00:32:40,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:32:40,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999046042] [2020-10-22 00:32:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:32:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:32:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:32:40,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999046042] [2020-10-22 00:32:40,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:32:40,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:32:40,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [165800623] [2020-10-22 00:32:40,437 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:32:40,439 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:32:40,447 INFO L252 McrAutomatonBuilder]: Finished intersection with 59 states and 101 transitions. [2020-10-22 00:32:40,447 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:32:40,485 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:32:40,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:32:40,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:32:40,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:32:40,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:32:40,486 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-22 00:32:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:32:40,519 INFO L93 Difference]: Finished difference Result 147 states and 317 transitions. [2020-10-22 00:32:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:32:40,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 00:32:40,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:32:40,520 INFO L225 Difference]: With dead ends: 147 [2020-10-22 00:32:40,520 INFO L226 Difference]: Without dead ends: 67 [2020-10-22 00:32:40,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:32:40,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-22 00:32:40,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-22 00:32:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-22 00:32:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 129 transitions. [2020-10-22 00:32:40,525 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 129 transitions. Word has length 18 [2020-10-22 00:32:40,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:32:40,525 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 129 transitions. [2020-10-22 00:32:40,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:32:40,526 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 129 transitions. [2020-10-22 00:32:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:32:40,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:32:40,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:32:40,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:32:40,527 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:32:40,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:32:40,527 INFO L82 PathProgramCache]: Analyzing trace with hash 30994256, now seen corresponding path program 2 times [2020-10-22 00:32:40,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:32:40,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005979130] [2020-10-22 00:32:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:32:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:32:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:32:40,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005979130] [2020-10-22 00:32:40,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:32:40,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:32:40,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1837275463] [2020-10-22 00:32:40,591 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:32:40,593 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:32:40,599 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 52 transitions. [2020-10-22 00:32:40,599 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:32:40,614 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:32:40,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:32:40,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:32:40,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:32:40,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:32:40,615 INFO L87 Difference]: Start difference. First operand 67 states and 129 transitions. Second operand 4 states. [2020-10-22 00:32:40,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:32:40,630 INFO L93 Difference]: Finished difference Result 66 states and 128 transitions. [2020-10-22 00:32:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:32:40,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 00:32:40,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:32:40,631 INFO L225 Difference]: With dead ends: 66 [2020-10-22 00:32:40,631 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:32:40,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:32:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:32:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:32:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:32:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:32:40,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:32:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:32:40,633 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:32:40,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:32:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:32:40,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:32:40,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:32:40,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:32:40 BasicIcfg [2020-10-22 00:32:40,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:32:40,640 INFO L168 Benchmark]: Toolchain (without parser) took 5175.29 ms. Allocated memory was 139.5 MB in the beginning and 250.1 MB in the end (delta: 110.6 MB). Free memory was 99.8 MB in the beginning and 121.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 88.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:32:40,640 INFO L168 Benchmark]: CDTParser took 3.35 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:32:40,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.41 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 98.8 MB in the beginning and 156.6 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:32:40,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.13 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:32:40,643 INFO L168 Benchmark]: Boogie Preprocessor took 27.72 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:32:40,644 INFO L168 Benchmark]: RCFGBuilder took 508.86 ms. Allocated memory is still 201.9 MB. Free memory was 152.6 MB in the beginning and 129.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-22 00:32:40,645 INFO L168 Benchmark]: TraceAbstraction took 3799.04 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 128.4 MB in the beginning and 121.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:32:40,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.35 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.41 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 98.8 MB in the beginning and 156.6 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.13 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.72 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 508.86 ms. Allocated memory is still 201.9 MB. Free memory was 152.6 MB in the beginning and 129.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3799.04 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 128.4 MB in the beginning and 121.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 778 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 109 SDtfs, 62 SDslu, 145 SDs, 0 SdLazy, 55 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...