/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:59:26,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:59:26,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:59:26,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:59:26,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:59:26,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:59:26,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:59:26,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:59:26,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:59:26,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:59:26,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:59:26,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:59:26,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:59:26,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:59:26,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:59:26,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:59:26,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:59:26,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:59:26,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:59:26,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:59:26,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:59:26,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:59:26,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:59:26,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:59:26,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 21:59:26,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 21:59:26,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 21:59:26,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 21:59:26,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 21:59:26,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 21:59:26,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:59:26,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:59:26,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:59:26,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:59:26,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:59:26,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:59:26,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:59:26,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:59:26,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:59:26,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:59:26,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:59:26,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:59:26,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:59:26,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:59:26,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:59:26,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:59:26,403 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:59:26,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:59:26,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:59:26,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:59:26,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:59:26,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:59:26,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:59:26,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:59:26,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:59:26,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:59:26,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:59:26,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:59:26,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:59:26,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:59:26,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:59:26,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:59:26,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:59:26,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:59:26,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:59:26,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:59:26,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:59:26,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:59:26,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:59:26,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:59:26,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:59:26,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:59:26,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:59:26,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:59:26,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:59:26,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:59:26,743 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:59:26,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-10-21 21:59:26,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c22f872a/d32adac0072547e4b91a5fab19332a9a/FLAGfe08b1cfe [2020-10-21 21:59:27,346 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:59:27,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-10-21 21:59:27,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c22f872a/d32adac0072547e4b91a5fab19332a9a/FLAGfe08b1cfe [2020-10-21 21:59:27,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c22f872a/d32adac0072547e4b91a5fab19332a9a [2020-10-21 21:59:27,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:59:27,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:59:27,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:59:27,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:59:27,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:59:27,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:59:27" (1/1) ... [2020-10-21 21:59:27,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3517c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:27, skipping insertion in model container [2020-10-21 21:59:27,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:59:27" (1/1) ... [2020-10-21 21:59:27,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:59:27,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:59:28,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:59:28,131 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:59:28,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:59:28,263 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:59:28,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28 WrapperNode [2020-10-21 21:59:28,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:59:28,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:59:28,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:59:28,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:59:28,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:59:28,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:59:28,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:59:28,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:59:28,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:59:28,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:59:28,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:59:28,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:59:28,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:59:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:59:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 21:59:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:59:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:59:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 21:59:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 21:59:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 21:59:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 21:59:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 21:59:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 21:59:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:59:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 21:59:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:59:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:59:28,424 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:59:28,799 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:59:28,800 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 21:59:28,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:59:28 BoogieIcfgContainer [2020-10-21 21:59:28,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:59:28,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:59:28,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:59:28,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:59:28,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:59:27" (1/3) ... [2020-10-21 21:59:28,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195697c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:59:28, skipping insertion in model container [2020-10-21 21:59:28,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (2/3) ... [2020-10-21 21:59:28,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195697c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:59:28, skipping insertion in model container [2020-10-21 21:59:28,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:59:28" (3/3) ... [2020-10-21 21:59:28,813 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-10-21 21:59:28,826 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:59:28,827 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:59:28,835 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 21:59:28,836 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:59:28,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,880 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,882 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,882 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,882 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,896 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,899 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,899 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,900 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:28,902 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:59:28,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 21:59:28,938 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:59:28,939 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:59:28,939 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:59:28,939 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:59:28,939 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:59:28,939 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:59:28,939 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:59:28,940 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:59:28,953 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:59:28,955 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 21:59:28,957 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 21:59:28,959 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-21 21:59:29,011 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-21 21:59:29,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 21:59:29,018 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 21:59:29,021 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 21:59:30,854 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 21:59:30,953 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-10-21 21:59:30,953 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-21 21:59:30,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 21:59:30,990 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 21:59:30,993 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 21:59:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 21:59:31,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:31,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:31,006 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:31,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-10-21 21:59:31,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:31,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447583402] [2020-10-21 21:59:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:31,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447583402] [2020-10-21 21:59:31,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:31,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:31,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179764130] [2020-10-21 21:59:31,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 21:59:31,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:31,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 21:59:31,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 21:59:31,253 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 21:59:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:31,286 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 21:59:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 21:59:31,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 21:59:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:31,307 INFO L225 Difference]: With dead ends: 362 [2020-10-21 21:59:31,308 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 21:59:31,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 21:59:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 21:59:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 21:59:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 21:59:31,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 21:59:31,402 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 21:59:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:31,404 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 21:59:31,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 21:59:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 21:59:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:59:31,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:31,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:31,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:59:31,407 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:31,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:31,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-10-21 21:59:31,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:31,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215706488] [2020-10-21 21:59:31,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:31,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215706488] [2020-10-21 21:59:31,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:31,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:31,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887794806] [2020-10-21 21:59:31,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:59:31,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:31,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:59:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:59:31,564 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 21:59:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:31,606 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 21:59:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:59:31,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 21:59:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:31,611 INFO L225 Difference]: With dead ends: 217 [2020-10-21 21:59:31,611 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 21:59:31,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:59:31,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 21:59:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 21:59:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 21:59:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 21:59:31,647 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 21:59:31,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:31,647 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 21:59:31,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:59:31,647 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 21:59:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:59:31,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:31,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:31,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:59:31,650 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:31,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-10-21 21:59:31,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:31,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817674846] [2020-10-21 21:59:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:31,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817674846] [2020-10-21 21:59:31,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:31,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:31,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283335037] [2020-10-21 21:59:31,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:59:31,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:31,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:59:31,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:31,731 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 21:59:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:31,757 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 21:59:31,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:59:31,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 21:59:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:31,758 INFO L225 Difference]: With dead ends: 136 [2020-10-21 21:59:31,759 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 21:59:31,759 INFO L677 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 [2020-10-21 21:59:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 21:59:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 21:59:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 21:59:31,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 21:59:31,766 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 21:59:31,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:31,766 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 21:59:31,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:59:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 21:59:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 21:59:31,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:31,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:31,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:59:31,769 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-10-21 21:59:31,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:31,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438698478] [2020-10-21 21:59:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:31,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438698478] [2020-10-21 21:59:31,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:31,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:59:31,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283132789] [2020-10-21 21:59:31,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:31,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:31,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:31,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:31,849 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 21:59:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:31,877 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 21:59:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:31,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 21:59:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:31,878 INFO L225 Difference]: With dead ends: 109 [2020-10-21 21:59:31,879 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 21:59:31,879 INFO L677 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 [2020-10-21 21:59:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 21:59:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 21:59:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 21:59:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 21:59:31,884 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 21:59:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:31,884 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 21:59:31,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 21:59:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:59:31,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:31,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:31,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:59:31,887 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-10-21 21:59:31,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:31,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565947673] [2020-10-21 21:59:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:31,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565947673] [2020-10-21 21:59:31,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:31,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:31,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146085927] [2020-10-21 21:59:31,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:31,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:31,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:31,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:31,985 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-21 21:59:32,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,025 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 21:59:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:32,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 21:59:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,032 INFO L225 Difference]: With dead ends: 135 [2020-10-21 21:59:32,033 INFO L226 Difference]: Without dead ends: 85 [2020-10-21 21:59:32,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-21 21:59:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-21 21:59:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 21:59:32,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-21 21:59:32,037 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-21 21:59:32,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,038 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-21 21:59:32,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:32,038 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-21 21:59:32,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:59:32,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:59:32,040 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,043 INFO L82 PathProgramCache]: Analyzing trace with hash 129745538, now seen corresponding path program 2 times [2020-10-21 21:59:32,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321049088] [2020-10-21 21:59:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321049088] [2020-10-21 21:59:32,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:32,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402938202] [2020-10-21 21:59:32,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:32,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:32,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:32,143 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-10-21 21:59:32,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,175 INFO L93 Difference]: Finished difference Result 123 states and 251 transitions. [2020-10-21 21:59:32,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:32,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 21:59:32,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,176 INFO L225 Difference]: With dead ends: 123 [2020-10-21 21:59:32,177 INFO L226 Difference]: Without dead ends: 61 [2020-10-21 21:59:32,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:32,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-21 21:59:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-21 21:59:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-21 21:59:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 117 transitions. [2020-10-21 21:59:32,180 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 117 transitions. Word has length 18 [2020-10-21 21:59:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,181 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 117 transitions. [2020-10-21 21:59:32,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 117 transitions. [2020-10-21 21:59:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:59:32,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:59:32,182 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,183 INFO L82 PathProgramCache]: Analyzing trace with hash -898209114, now seen corresponding path program 3 times [2020-10-21 21:59:32,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086389462] [2020-10-21 21:59:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086389462] [2020-10-21 21:59:32,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:32,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611801638] [2020-10-21 21:59:32,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:59:32,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:59:32,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:32,231 INFO L87 Difference]: Start difference. First operand 61 states and 117 transitions. Second operand 4 states. [2020-10-21 21:59:32,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,246 INFO L93 Difference]: Finished difference Result 60 states and 116 transitions. [2020-10-21 21:59:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:59:32,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 21:59:32,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,247 INFO L225 Difference]: With dead ends: 60 [2020-10-21 21:59:32,247 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 21:59:32,248 INFO L677 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 [2020-10-21 21:59:32,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 21:59:32,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 21:59:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 21:59:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 21:59:32,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 21:59:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,249 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 21:59:32,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:59:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 21:59:32,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 21:59:32,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:59:32,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:59:32 BasicIcfg [2020-10-21 21:59:32,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:59:32,255 INFO L168 Benchmark]: Toolchain (without parser) took 4657.61 ms. Allocated memory was 140.0 MB in the beginning and 248.0 MB in the end (delta: 108.0 MB). Free memory was 101.1 MB in the beginning and 139.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,256 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.96 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 100.3 MB in the beginning and 156.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.92 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,259 INFO L168 Benchmark]: Boogie Preprocessor took 27.65 ms. Allocated memory is still 201.9 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,260 INFO L168 Benchmark]: RCFGBuilder took 457.75 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 127.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,261 INFO L168 Benchmark]: TraceAbstraction took 3448.93 ms. Allocated memory was 201.9 MB in the beginning and 248.0 MB in the end (delta: 46.1 MB). Free memory was 127.8 MB in the beginning and 139.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:32,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.96 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 100.3 MB in the beginning and 156.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.92 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.65 ms. Allocated memory is still 201.9 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.75 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 127.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3448.93 ms. Allocated memory was 201.9 MB in the beginning and 248.0 MB in the end (delta: 46.1 MB). Free memory was 127.8 MB in the beginning and 139.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 952 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 78 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 117 SDtfs, 86 SDslu, 155 SDs, 0 SdLazy, 62 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 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, 3559 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...