/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:29:31,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:29:31,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:29:31,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:29:31,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:29:31,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:29:31,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:29:31,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:29:31,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:29:31,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:29:31,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:29:31,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:29:31,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:29:31,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:29:31,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:29:31,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:29:31,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:29:31,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:29:31,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:29:31,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:29:31,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:29:31,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:29:31,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:29:31,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:29:31,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:29:31,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:29:31,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:29:31,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:29:31,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:29:31,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:29:31,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:29:31,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:29:31,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:29:31,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:29:31,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:29:31,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:29:31,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:29:31,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:29:31,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:29:31,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:29:31,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:29:31,196 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-SemanticLbe.epf [2020-04-17 22:29:31,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:29:31,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:29:31,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:29:31,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:29:31,212 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:29:31,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:29:31,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:29:31,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:29:31,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:29:31,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:29:31,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:29:31,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:29:31,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:29:31,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:29:31,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:29:31,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:29:31,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:29:31,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:29:31,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:29:31,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:29:31,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:29:31,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:29:31,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:29:31,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:29:31,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:29:31,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:29:31,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:29:31,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:29:31,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:29:31,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:29:31,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:29:31,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:29:31,505 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:29:31,505 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:29:31,506 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-04-17 22:29:31,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84558080b/38f9a1f3310147088c17ac7f4760a02d/FLAG372188c3e [2020-04-17 22:29:32,092 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:29:32,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-04-17 22:29:32,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84558080b/38f9a1f3310147088c17ac7f4760a02d/FLAG372188c3e [2020-04-17 22:29:32,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84558080b/38f9a1f3310147088c17ac7f4760a02d [2020-04-17 22:29:32,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:29:32,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:29:32,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:29:32,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:29:32,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:29:32,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:29:32" (1/1) ... [2020-04-17 22:29:32,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d44dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:32, skipping insertion in model container [2020-04-17 22:29:32,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:29:32" (1/1) ... [2020-04-17 22:29:32,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:29:32,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:29:32,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:29:33,011 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:29:33,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:29:33,194 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:29:33,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33 WrapperNode [2020-04-17 22:29:33,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:29:33,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:29:33,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:29:33,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:29:33,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:29:33,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:29:33,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:29:33,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:29:33,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (1/1) ... [2020-04-17 22:29:33,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:29:33,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:29:33,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:29:33,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:29:33,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (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 [2020-04-17 22:29:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:29:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:29:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:29:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:29:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:29:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:29:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:29:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:29:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:29:33,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:29:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:29:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:29:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:29:33,410 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:29:33,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:29:33,737 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:29:33,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:29:33 BoogieIcfgContainer [2020-04-17 22:29:33,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:29:33,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:29:33,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:29:33,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:29:33,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:29:32" (1/3) ... [2020-04-17 22:29:33,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faea544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:29:33, skipping insertion in model container [2020-04-17 22:29:33,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:29:33" (2/3) ... [2020-04-17 22:29:33,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3faea544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:29:33, skipping insertion in model container [2020-04-17 22:29:33,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:29:33" (3/3) ... [2020-04-17 22:29:33,749 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-04-17 22:29:33,760 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:29:33,760 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:29:33,769 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:29:33,770 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:29:33,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,802 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,803 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,803 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,804 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,804 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,805 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,805 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,805 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,806 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,806 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,806 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,807 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,807 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,807 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,808 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,812 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,812 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,812 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,813 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,819 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,820 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,820 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,820 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,832 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,832 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,832 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,833 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:29:33,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:29:33,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:29:33,865 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:29:33,865 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:29:33,866 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:29:33,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:29:33,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:29:33,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:29:33,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:29:33,880 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-04-17 22:29:33,882 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-04-17 22:29:33,922 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-04-17 22:29:33,923 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:29:33,930 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:29:33,934 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-04-17 22:29:33,960 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-04-17 22:29:33,961 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:29:33,961 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:29:33,963 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 22:29:33,965 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:29:35,491 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-04-17 22:29:35,491 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-04-17 22:29:35,495 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-17 22:29:35,521 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-17 22:29:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-17 22:29:35,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:29:35,531 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:35,532 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:35,533 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:35,540 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-04-17 22:29:35,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:35,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60939497] [2020-04-17 22:29:35,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:35,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60939497] [2020-04-17 22:29:35,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:35,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:29:35,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168854598] [2020-04-17 22:29:35,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 22:29:35,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:35,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 22:29:35,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 22:29:35,724 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-17 22:29:35,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:35,759 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-17 22:29:35,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 22:29:35,760 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-17 22:29:35,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:35,778 INFO L225 Difference]: With dead ends: 362 [2020-04-17 22:29:35,779 INFO L226 Difference]: Without dead ends: 298 [2020-04-17 22:29:35,780 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 [2020-04-17 22:29:35,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-17 22:29:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-17 22:29:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-17 22:29:35,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-17 22:29:35,856 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-17 22:29:35,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:35,857 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-17 22:29:35,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 22:29:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-17 22:29:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:29:35,859 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:35,859 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:35,859 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:35,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:35,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-04-17 22:29:35,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:35,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307833576] [2020-04-17 22:29:35,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:35,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307833576] [2020-04-17 22:29:35,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:35,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:29:35,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095002018] [2020-04-17 22:29:35,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:29:35,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:35,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:29:35,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:29:35,957 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-04-17 22:29:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:35,994 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-04-17 22:29:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:29:35,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-17 22:29:35,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:35,998 INFO L225 Difference]: With dead ends: 217 [2020-04-17 22:29:35,998 INFO L226 Difference]: Without dead ends: 217 [2020-04-17 22:29:35,999 INFO L678 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 [2020-04-17 22:29:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-04-17 22:29:36,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-04-17 22:29:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-04-17 22:29:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-04-17 22:29:36,036 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-04-17 22:29:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:36,036 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-04-17 22:29:36,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:29:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-04-17 22:29:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:29:36,038 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:36,038 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:36,038 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-04-17 22:29:36,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:36,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853880672] [2020-04-17 22:29:36,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:36,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853880672] [2020-04-17 22:29:36,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:36,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:29:36,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706257102] [2020-04-17 22:29:36,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:29:36,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:36,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:29:36,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:29:36,140 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-04-17 22:29:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:36,166 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-04-17 22:29:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:29:36,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 22:29:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:36,168 INFO L225 Difference]: With dead ends: 136 [2020-04-17 22:29:36,168 INFO L226 Difference]: Without dead ends: 136 [2020-04-17 22:29:36,169 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:29:36,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-04-17 22:29:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-04-17 22:29:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-17 22:29:36,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-04-17 22:29:36,176 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-04-17 22:29:36,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:36,176 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-04-17 22:29:36,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:29:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-04-17 22:29:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 22:29:36,178 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:36,178 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:36,178 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:36,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-04-17 22:29:36,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:36,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562338520] [2020-04-17 22:29:36,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:36,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562338520] [2020-04-17 22:29:36,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:36,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:29:36,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312409985] [2020-04-17 22:29:36,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:29:36,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:36,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:29:36,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:29:36,252 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-04-17 22:29:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:36,285 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-04-17 22:29:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:29:36,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-17 22:29:36,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:36,288 INFO L225 Difference]: With dead ends: 109 [2020-04-17 22:29:36,288 INFO L226 Difference]: Without dead ends: 109 [2020-04-17 22:29:36,289 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:29:36,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-04-17 22:29:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-04-17 22:29:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-04-17 22:29:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-04-17 22:29:36,294 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-04-17 22:29:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:36,295 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-04-17 22:29:36,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:29:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-04-17 22:29:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:29:36,296 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:36,297 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:36,297 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:36,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:36,297 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-04-17 22:29:36,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:36,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702534434] [2020-04-17 22:29:36,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:36,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702534434] [2020-04-17 22:29:36,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:36,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:29:36,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775693606] [2020-04-17 22:29:36,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:29:36,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:36,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:29:36,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:29:36,406 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-04-17 22:29:36,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:36,441 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-04-17 22:29:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:29:36,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-04-17 22:29:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:36,442 INFO L225 Difference]: With dead ends: 135 [2020-04-17 22:29:36,443 INFO L226 Difference]: Without dead ends: 85 [2020-04-17 22:29:36,443 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 [2020-04-17 22:29:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-04-17 22:29:36,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-04-17 22:29:36,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-04-17 22:29:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-04-17 22:29:36,450 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-04-17 22:29:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:36,450 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-04-17 22:29:36,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:29:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-04-17 22:29:36,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:29:36,452 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:36,452 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:36,457 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:36,458 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-04-17 22:29:36,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:36,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824220548] [2020-04-17 22:29:36,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:36,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824220548] [2020-04-17 22:29:36,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:36,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:29:36,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326527605] [2020-04-17 22:29:36,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:29:36,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:36,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:29:36,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:29:36,535 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-04-17 22:29:36,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:36,560 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-04-17 22:29:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:29:36,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-04-17 22:29:36,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:36,561 INFO L225 Difference]: With dead ends: 99 [2020-04-17 22:29:36,561 INFO L226 Difference]: Without dead ends: 37 [2020-04-17 22:29:36,562 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 [2020-04-17 22:29:36,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-04-17 22:29:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-04-17 22:29:36,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-04-17 22:29:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-04-17 22:29:36,564 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-04-17 22:29:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:36,564 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-04-17 22:29:36,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:29:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-04-17 22:29:36,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:29:36,568 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:29:36,568 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:29:36,569 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:29:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:29:36,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-04-17 22:29:36,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:29:36,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543633133] [2020-04-17 22:29:36,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:29:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:29:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:29:36,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543633133] [2020-04-17 22:29:36,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:29:36,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:29:36,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246534766] [2020-04-17 22:29:36,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:29:36,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:29:36,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:29:36,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:29:36,646 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-04-17 22:29:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:29:36,666 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-04-17 22:29:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:29:36,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-04-17 22:29:36,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:29:36,667 INFO L225 Difference]: With dead ends: 36 [2020-04-17 22:29:36,667 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:29:36,668 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 [2020-04-17 22:29:36,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:29:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:29:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:29:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:29:36,669 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-17 22:29:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:29:36,670 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:29:36,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:29:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:29:36,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:29:36,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:29:36 BasicIcfg [2020-04-17 22:29:36,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:29:36,677 INFO L168 Benchmark]: Toolchain (without parser) took 4226.41 ms. Allocated memory was 136.8 MB in the beginning and 250.6 MB in the end (delta: 113.8 MB). Free memory was 100.2 MB in the beginning and 118.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,684 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.11 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 98.4 MB in the beginning and 155.2 MB in the end (delta: -56.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.27 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 152.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,687 INFO L168 Benchmark]: Boogie Preprocessor took 53.79 ms. Allocated memory is still 200.3 MB. Free memory was 152.9 MB in the beginning and 151.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,688 INFO L168 Benchmark]: RCFGBuilder took 411.49 ms. Allocated memory is still 200.3 MB. Free memory was 151.4 MB in the beginning and 129.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,692 INFO L168 Benchmark]: TraceAbstraction took 2931.98 ms. Allocated memory was 200.3 MB in the beginning and 250.6 MB in the end (delta: 50.3 MB). Free memory was 129.5 MB in the beginning and 118.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:29:36,703 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.11 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 98.4 MB in the beginning and 155.2 MB in the end (delta: -56.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 79.27 ms. Allocated memory is still 200.3 MB. Free memory was 155.2 MB in the beginning and 152.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.79 ms. Allocated memory is still 200.3 MB. Free memory was 152.9 MB in the beginning and 151.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 411.49 ms. Allocated memory is still 200.3 MB. Free memory was 151.4 MB in the beginning and 129.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2931.98 ms. Allocated memory was 200.3 MB in the beginning and 250.6 MB in the end (delta: 50.3 MB). Free memory was 129.5 MB in the beginning and 118.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 692 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 128 SDtfs, 73 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...