/usr/bin/java -Xmx16000000000 -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/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:59:05,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:59:05,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:59:05,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:59:05,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:59:05,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:59:05,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:59:05,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:59:05,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:59:05,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:59:05,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:59:05,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:59:05,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:59:05,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:59:05,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:59:05,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:59:05,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:59:05,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:59:05,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:59:05,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:59:05,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:59:05,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:59:05,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:59:05,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:59:05,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:59:05,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:59:05,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:59:05,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:59:05,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:59:05,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:59:05,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:59:05,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:59:05,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:59:05,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:59:05,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:59:05,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:59:05,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:59:05,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:59:05,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:59:05,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:59:05,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:59:05,397 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 [2020-10-09 12:59:05,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:59:05,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:59:05,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:59:05,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:59:05,426 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:59:05,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:59:05,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:59:05,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:59:05,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:59:05,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:59:05,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:59:05,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:59:05,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:59:05,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:59:05,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:59:05,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:59:05,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:59:05,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:59:05,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:59:05,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:59:05,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:59:05,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:59:05,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:59:05,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:59:05,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:59:05,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:59:05,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:59:05,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:59:05,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:59:05,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:59:05,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:59:05,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:59:05,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:59:05,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:59:05,726 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:59:05,727 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2020-10-09 12:59:05,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4297f3d13/91be67436218413292d2686d1ac069fc/FLAGdaf0f97a2 [2020-10-09 12:59:06,370 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:59:06,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2020-10-09 12:59:06,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4297f3d13/91be67436218413292d2686d1ac069fc/FLAGdaf0f97a2 [2020-10-09 12:59:06,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4297f3d13/91be67436218413292d2686d1ac069fc [2020-10-09 12:59:06,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:59:06,628 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:59:06,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:59:06,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:59:06,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:59:06,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:59:06" (1/1) ... [2020-10-09 12:59:06,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34771ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:06, skipping insertion in model container [2020-10-09 12:59:06,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:59:06" (1/1) ... [2020-10-09 12:59:06,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:59:06,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:59:07,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:59:07,042 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:59:07,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:59:07,321 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:59:07,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07 WrapperNode [2020-10-09 12:59:07,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:59:07,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:59:07,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:59:07,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:59:07,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:59:07,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:59:07,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:59:07,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:59:07,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (1/1) ... [2020-10-09 12:59:07,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:59:07,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:59:07,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:59:07,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:59:07,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (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 [2020-10-09 12:59:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:59:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:59:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:59:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:59:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:59:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:59:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:59:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:59:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:59:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:59:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:59:07,483 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:59:07,793 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:59:07,793 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:59:07,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:59:07 BoogieIcfgContainer [2020-10-09 12:59:07,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:59:07,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:59:07,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:59:07,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:59:07,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:59:06" (1/3) ... [2020-10-09 12:59:07,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d32a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:59:07, skipping insertion in model container [2020-10-09 12:59:07,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:59:07" (2/3) ... [2020-10-09 12:59:07,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d32a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:59:07, skipping insertion in model container [2020-10-09 12:59:07,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:59:07" (3/3) ... [2020-10-09 12:59:07,804 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2020-10-09 12:59:07,823 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:59:07,823 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:59:07,831 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:59:07,832 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:59:07,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,880 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,880 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,881 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,883 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:59:07,921 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-09 12:59:07,940 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:59:07,940 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:59:07,940 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:59:07,940 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:59:07,940 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:59:07,941 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:59:07,941 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:59:07,941 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:59:07,954 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:59:07,957 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-09 12:59:07,959 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-09 12:59:07,962 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-09 12:59:08,013 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-09 12:59:08,014 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:59:08,021 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-09 12:59:08,026 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-09 12:59:09,314 INFO L132 LiptonReduction]: Checked pairs total: 1197 [2020-10-09 12:59:09,315 INFO L134 LiptonReduction]: Total number of compositions: 50 [2020-10-09 12:59:09,323 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-09 12:59:09,336 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-09 12:59:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-09 12:59:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-09 12:59:09,344 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:59:09,345 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-09 12:59:09,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:59:09,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:59:09,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-10-09 12:59:09,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:59:09,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45945340] [2020-10-09 12:59:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:59:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:59:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:59:09,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45945340] [2020-10-09 12:59:09,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:59:09,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:59:09,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448134988] [2020-10-09 12:59:09,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:59:09,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:59:09,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:59:09,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:59:09,562 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-09 12:59:09,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:59:09,600 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-09 12:59:09,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:59:09,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-09 12:59:09,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:59:09,614 INFO L225 Difference]: With dead ends: 70 [2020-10-09 12:59:09,614 INFO L226 Difference]: Without dead ends: 54 [2020-10-09 12:59:09,615 INFO L673 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 [2020-10-09 12:59:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-09 12:59:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-09 12:59:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-09 12:59:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-09 12:59:09,659 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-09 12:59:09,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:59:09,659 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-09 12:59:09,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:59:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-09 12:59:09,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 12:59:09,660 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:59:09,661 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:59:09,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:59:09,661 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:59:09,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:59:09,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-10-09 12:59:09,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:59:09,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689886077] [2020-10-09 12:59:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:59:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:59:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:59:09,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689886077] [2020-10-09 12:59:09,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:59:09,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:59:09,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142758908] [2020-10-09 12:59:09,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:59:09,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:59:09,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:59:09,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:59:09,754 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-09 12:59:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:59:09,778 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-09 12:59:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:59:09,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-09 12:59:09,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:59:09,780 INFO L225 Difference]: With dead ends: 60 [2020-10-09 12:59:09,780 INFO L226 Difference]: Without dead ends: 36 [2020-10-09 12:59:09,781 INFO L673 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 [2020-10-09 12:59:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-09 12:59:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-09 12:59:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-09 12:59:09,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-09 12:59:09,787 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-10-09 12:59:09,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:59:09,787 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-09 12:59:09,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:59:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-09 12:59:09,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 12:59:09,788 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:59:09,788 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:59:09,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:59:09,789 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:59:09,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:59:09,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-10-09 12:59:09,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:59:09,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804072951] [2020-10-09 12:59:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:59:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:59:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:59:09,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804072951] [2020-10-09 12:59:09,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:59:09,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:59:09,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299197833] [2020-10-09 12:59:09,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:59:09,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:59:09,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:59:09,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:59:09,899 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-09 12:59:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:59:09,925 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-09 12:59:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:59:09,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-09 12:59:09,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:59:09,927 INFO L225 Difference]: With dead ends: 39 [2020-10-09 12:59:09,927 INFO L226 Difference]: Without dead ends: 29 [2020-10-09 12:59:09,927 INFO L673 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 [2020-10-09 12:59:09,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-09 12:59:09,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-09 12:59:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-09 12:59:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-09 12:59:09,932 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-10-09 12:59:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:59:09,932 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-09 12:59:09,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:59:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-09 12:59:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-09 12:59:09,933 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:59:09,934 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:59:09,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:59:09,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:59:09,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:59:09,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1964607327, now seen corresponding path program 1 times [2020-10-09 12:59:09,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:59:09,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130976570] [2020-10-09 12:59:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:59:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:59:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:59:09,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130976570] [2020-10-09 12:59:09,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:59:09,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:59:10,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683966001] [2020-10-09 12:59:10,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:59:10,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:59:10,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:59:10,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:59:10,001 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-10-09 12:59:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:59:10,037 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-10-09 12:59:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:59:10,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-09 12:59:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:59:10,039 INFO L225 Difference]: With dead ends: 27 [2020-10-09 12:59:10,039 INFO L226 Difference]: Without dead ends: 22 [2020-10-09 12:59:10,039 INFO L673 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 [2020-10-09 12:59:10,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-09 12:59:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-09 12:59:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-09 12:59:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-09 12:59:10,043 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-10-09 12:59:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:59:10,043 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-09 12:59:10,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:59:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-09 12:59:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:59:10,044 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:59:10,044 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:59:10,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:59:10,045 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:59:10,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:59:10,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1799382783, now seen corresponding path program 1 times [2020-10-09 12:59:10,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:59:10,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041829085] [2020-10-09 12:59:10,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:59:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:59:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:59:10,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041829085] [2020-10-09 12:59:10,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:59:10,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:59:10,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974831078] [2020-10-09 12:59:10,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:59:10,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:59:10,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:59:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:59:10,101 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-10-09 12:59:10,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:59:10,116 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-09 12:59:10,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:59:10,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 12:59:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:59:10,117 INFO L225 Difference]: With dead ends: 21 [2020-10-09 12:59:10,117 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:59:10,117 INFO L673 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 [2020-10-09 12:59:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:59:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:59:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:59:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:59:10,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-09 12:59:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:59:10,118 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:59:10,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:59:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:59:10,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:59:10,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:59:10,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:59:10 BasicIcfg [2020-10-09 12:59:10,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:59:10,125 INFO L168 Benchmark]: Toolchain (without parser) took 3496.81 ms. Allocated memory was 253.8 MB in the beginning and 378.5 MB in the end (delta: 124.8 MB). Free memory was 207.6 MB in the beginning and 342.3 MB in the end (delta: -134.7 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:59:10,126 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:59:10,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.83 ms. Allocated memory was 253.8 MB in the beginning and 327.2 MB in the end (delta: 73.4 MB). Free memory was 207.6 MB in the beginning and 282.2 MB in the end (delta: -74.6 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. [2020-10-09 12:59:10,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.52 ms. Allocated memory is still 327.2 MB. Free memory was 282.2 MB in the beginning and 279.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:59:10,128 INFO L168 Benchmark]: Boogie Preprocessor took 26.76 ms. Allocated memory is still 327.2 MB. Free memory is still 279.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:59:10,129 INFO L168 Benchmark]: RCFGBuilder took 382.46 ms. Allocated memory is still 327.2 MB. Free memory was 279.7 MB in the beginning and 257.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-09 12:59:10,129 INFO L168 Benchmark]: TraceAbstraction took 2325.57 ms. Allocated memory was 327.2 MB in the beginning and 378.5 MB in the end (delta: 51.4 MB). Free memory was 257.9 MB in the beginning and 342.3 MB in the end (delta: -84.5 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:59:10,133 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 693.83 ms. Allocated memory was 253.8 MB in the beginning and 327.2 MB in the end (delta: 73.4 MB). Free memory was 207.6 MB in the beginning and 282.2 MB in the end (delta: -74.6 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 60.52 ms. Allocated memory is still 327.2 MB. Free memory was 282.2 MB in the beginning and 279.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.76 ms. Allocated memory is still 327.2 MB. Free memory is still 279.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 382.46 ms. Allocated memory is still 327.2 MB. Free memory was 279.7 MB in the beginning and 257.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2325.57 ms. Allocated memory was 327.2 MB in the beginning and 378.5 MB in the end (delta: 51.4 MB). Free memory was 257.9 MB in the beginning and 342.3 MB in the end (delta: -84.5 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 468 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 30 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 50 TotalNumberOfCompositions, 1197 MoverChecksTotal - 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 60 SDtfs, 48 SDslu, 60 SDs, 0 SdLazy, 45 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1057 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...