/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/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:25:22,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:25:22,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:25:22,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:25:22,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:25:22,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:25:22,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:25:22,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:25:22,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:25:22,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:25:22,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:25:22,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:25:22,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:25:22,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:25:22,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:25:22,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:25:22,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:25:22,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:25:22,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:25:22,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:25:22,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:25:22,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:25:22,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:25:22,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:25:22,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:25:22,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:25:22,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:25:22,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:25:22,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:25:22,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:25:22,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:25:22,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:25:22,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:25:22,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:25:22,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:25:22,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:25:22,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:25:22,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:25:22,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:25:22,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:25:22,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:25:22,122 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 22:25:22,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:25:22,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:25:22,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:25:22,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:25:22,142 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:25:22,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:25:22,143 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:25:22,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:25:22,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:25:22,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:25:22,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:25:22,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:25:22,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:25:22,144 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:25:22,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:25:22,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:25:22,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:25:22,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:25:22,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:25:22,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:25:22,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:25:22,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:25:22,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:25:22,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:25:22,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:25:22,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:25:22,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:25:22,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:25:22,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:25:22,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:25:22,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:25:22,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:25:22,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:25:22,486 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:25:22,487 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-04-17 22:25:22,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d22f8b24/a4fee37f688f45c5ad5540876b41942d/FLAG7aa7a656c [2020-04-17 22:25:23,166 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:25:23,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-04-17 22:25:23,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d22f8b24/a4fee37f688f45c5ad5540876b41942d/FLAG7aa7a656c [2020-04-17 22:25:23,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d22f8b24/a4fee37f688f45c5ad5540876b41942d [2020-04-17 22:25:23,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:25:23,456 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:25:23,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:23,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:25:23,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:25:23,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:23" (1/1) ... [2020-04-17 22:25:23,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1739c8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:23, skipping insertion in model container [2020-04-17 22:25:23,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:23" (1/1) ... [2020-04-17 22:25:23,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:25:23,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:25:23,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:24,015 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:25:24,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:24,194 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:25:24,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24 WrapperNode [2020-04-17 22:25:24,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:24,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:24,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:25:24,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:25:24,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:24,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:25:24,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:25:24,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:25:24,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (1/1) ... [2020-04-17 22:25:24,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:25:24,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:25:24,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:25:24,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:25:24,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (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 22:25:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:25:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:25:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:25:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:25:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:25:24,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:25:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:25:24,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:25:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:25:24,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:25:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:25:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:25:24,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:25:24,353 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 22:25:24,767 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:25:24,767 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:25:24,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:24 BoogieIcfgContainer [2020-04-17 22:25:24,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:25:24,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:25:24,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:25:24,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:25:24,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:25:23" (1/3) ... [2020-04-17 22:25:24,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661658a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:24, skipping insertion in model container [2020-04-17 22:25:24,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:24" (2/3) ... [2020-04-17 22:25:24,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661658a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:24, skipping insertion in model container [2020-04-17 22:25:24,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:24" (3/3) ... [2020-04-17 22:25:24,781 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2020-04-17 22:25:24,793 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:25:24,793 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:25:24,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:25:24,802 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:25:24,829 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,829 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,829 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,830 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,830 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,831 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,832 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,832 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,832 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,832 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,833 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,833 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,834 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,834 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,834 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,834 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,835 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,840 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,840 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,847 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,848 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,848 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,851 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,851 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:24,869 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:25:24,889 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:25:24,890 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:25:24,890 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:25:24,890 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:25:24,890 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:25:24,890 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:25:24,890 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:25:24,891 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:25:24,907 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-17 22:25:24,910 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 22:25:24,962 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 22:25:24,963 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:24,969 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-17 22:25:24,972 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 22:25:24,994 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 22:25:24,995 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:24,995 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-17 22:25:24,998 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-04-17 22:25:24,999 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:25:26,945 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-17 22:25:27,023 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-04-17 22:25:27,023 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-04-17 22:25:27,028 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-04-17 22:25:27,055 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-04-17 22:25:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-04-17 22:25:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:25:27,067 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:27,067 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:27,068 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:27,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-04-17 22:25:27,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:27,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475910608] [2020-04-17 22:25:27,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:27,412 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 22:25:27,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475910608] [2020-04-17 22:25:27,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:27,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:25:27,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920438352] [2020-04-17 22:25:27,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:25:27,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:27,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:25:27,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:25:27,438 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-04-17 22:25:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:27,482 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-04-17 22:25:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:25:27,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 22:25:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:27,500 INFO L225 Difference]: With dead ends: 214 [2020-04-17 22:25:27,500 INFO L226 Difference]: Without dead ends: 166 [2020-04-17 22:25:27,502 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:25:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-04-17 22:25:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-04-17 22:25:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-04-17 22:25:27,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-04-17 22:25:27,565 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-04-17 22:25:27,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:27,567 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-04-17 22:25:27,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:25:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-04-17 22:25:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:25:27,568 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:27,568 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:27,569 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:27,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:27,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-04-17 22:25:27,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:27,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682847679] [2020-04-17 22:25:27,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:27,634 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 22:25:27,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682847679] [2020-04-17 22:25:27,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:27,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:27,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395161327] [2020-04-17 22:25:27,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:27,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:27,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:27,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:27,638 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-04-17 22:25:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:27,678 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-04-17 22:25:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:25:27,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 22:25:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:27,684 INFO L225 Difference]: With dead ends: 202 [2020-04-17 22:25:27,684 INFO L226 Difference]: Without dead ends: 130 [2020-04-17 22:25:27,685 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-04-17 22:25:27,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-04-17 22:25:27,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-04-17 22:25:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-04-17 22:25:27,700 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-04-17 22:25:27,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:27,700 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-04-17 22:25:27,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:27,700 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-04-17 22:25:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 22:25:27,701 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:27,702 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:27,702 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:27,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:27,702 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-04-17 22:25:27,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:27,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472931598] [2020-04-17 22:25:27,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:27,777 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 22:25:27,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472931598] [2020-04-17 22:25:27,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:27,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:27,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027286392] [2020-04-17 22:25:27,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:27,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:27,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:27,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:27,780 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-04-17 22:25:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:27,824 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-04-17 22:25:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:27,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-17 22:25:27,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:27,826 INFO L225 Difference]: With dead ends: 148 [2020-04-17 22:25:27,826 INFO L226 Difference]: Without dead ends: 112 [2020-04-17 22:25:27,827 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:27,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-17 22:25:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-17 22:25:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-17 22:25:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-04-17 22:25:27,837 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-04-17 22:25:27,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:27,838 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-04-17 22:25:27,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:27,838 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-04-17 22:25:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:25:27,839 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:27,839 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:27,839 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:27,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:27,840 INFO L82 PathProgramCache]: Analyzing trace with hash 806230555, now seen corresponding path program 1 times [2020-04-17 22:25:27,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:27,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531733428] [2020-04-17 22:25:27,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:27,913 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 22:25:27,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531733428] [2020-04-17 22:25:27,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:27,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:27,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66082928] [2020-04-17 22:25:27,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:27,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:27,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:27,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:27,915 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-04-17 22:25:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:27,977 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-04-17 22:25:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:27,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-04-17 22:25:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:27,978 INFO L225 Difference]: With dead ends: 109 [2020-04-17 22:25:27,978 INFO L226 Difference]: Without dead ends: 85 [2020-04-17 22:25:27,979 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-04-17 22:25:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-04-17 22:25:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-04-17 22:25:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-04-17 22:25:27,985 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-04-17 22:25:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:27,985 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-04-17 22:25:27,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-04-17 22:25:27,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 22:25:27,987 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:27,987 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:27,987 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:27,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:28,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-04-17 22:25:28,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:28,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585652168] [2020-04-17 22:25:28,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:28,068 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 22:25:28,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585652168] [2020-04-17 22:25:28,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:28,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:28,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438922892] [2020-04-17 22:25:28,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:25:28,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:28,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:25:28,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:28,070 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-04-17 22:25:28,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:28,120 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-04-17 22:25:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:25:28,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-04-17 22:25:28,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:28,121 INFO L225 Difference]: With dead ends: 80 [2020-04-17 22:25:28,121 INFO L226 Difference]: Without dead ends: 72 [2020-04-17 22:25:28,122 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:28,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-04-17 22:25:28,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-04-17 22:25:28,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-04-17 22:25:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-04-17 22:25:28,126 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-04-17 22:25:28,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:28,127 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-04-17 22:25:28,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:25:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-04-17 22:25:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:25:28,128 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:28,128 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:28,128 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:28,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:28,129 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-04-17 22:25:28,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:28,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891939265] [2020-04-17 22:25:28,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:28,204 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 22:25:28,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891939265] [2020-04-17 22:25:28,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:28,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:28,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392254208] [2020-04-17 22:25:28,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:28,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:28,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:28,207 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-04-17 22:25:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:28,237 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-04-17 22:25:28,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:25:28,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-17 22:25:28,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:28,238 INFO L225 Difference]: With dead ends: 97 [2020-04-17 22:25:28,238 INFO L226 Difference]: Without dead ends: 48 [2020-04-17 22:25:28,238 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:25:28,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-04-17 22:25:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-04-17 22:25:28,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-04-17 22:25:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-04-17 22:25:28,242 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-04-17 22:25:28,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:28,242 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-04-17 22:25:28,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-04-17 22:25:28,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:25:28,248 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:28,248 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:28,249 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:28,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-04-17 22:25:28,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:28,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860661146] [2020-04-17 22:25:28,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:28,295 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 22:25:28,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860661146] [2020-04-17 22:25:28,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:28,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:28,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149720490] [2020-04-17 22:25:28,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:28,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:28,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:28,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:28,297 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-04-17 22:25:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:28,309 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-04-17 22:25:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:25:28,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-17 22:25:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:28,310 INFO L225 Difference]: With dead ends: 47 [2020-04-17 22:25:28,310 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:25:28,311 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 22:25:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:25:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:25:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:25:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:25:28,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-04-17 22:25:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:28,312 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:25:28,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:25:28,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:25:28,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:25:28 BasicIcfg [2020-04-17 22:25:28,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:25:28,321 INFO L168 Benchmark]: Toolchain (without parser) took 4886.15 ms. Allocated memory was 145.2 MB in the beginning and 249.0 MB in the end (delta: 103.8 MB). Free memory was 101.3 MB in the beginning and 179.6 MB in the end (delta: -78.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:28,328 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-17 22:25:28,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.69 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.6 MB in the beginning and 158.3 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:28,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.74 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:28,331 INFO L168 Benchmark]: Boogie Preprocessor took 33.15 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 154.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:28,332 INFO L168 Benchmark]: RCFGBuilder took 479.66 ms. Allocated memory is still 203.4 MB. Free memory was 154.2 MB in the beginning and 132.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:28,335 INFO L168 Benchmark]: TraceAbstraction took 3546.24 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 131.9 MB in the beginning and 179.6 MB in the end (delta: -47.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 22:25:28,345 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.69 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.6 MB in the beginning and 158.3 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.74 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.15 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 154.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.66 ms. Allocated memory is still 203.4 MB. Free memory was 154.2 MB in the beginning and 132.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3546.24 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 131.9 MB in the beginning and 179.6 MB in the end (delta: -47.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 644 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 124 SDtfs, 130 SDslu, 169 SDs, 0 SdLazy, 101 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2534 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...