/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/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:08:24,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:08:24,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:08:24,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:08:24,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:08:24,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:08:24,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:08:24,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:08:24,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:08:24,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:08:24,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:08:24,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:08:24,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:08:24,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:08:24,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:08:24,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:08:24,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:08:24,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:08:24,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:08:24,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:08:24,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:08:24,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:08:24,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:08:24,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:08:24,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:08:24,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:08:24,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:08:24,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:08:24,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:08:24,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:08:24,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:08:24,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:08:24,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:08:24,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:08:24,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:08:24,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:08:24,379 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 [2020-10-11 15:08:24,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:08:24,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:08:24,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:08:24,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:08:24,402 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:08:24,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:08:24,402 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:08:24,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:08:24,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:08:24,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:08:24,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:08:24,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:08:24,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:08:24,403 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:08:24,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:08:24,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:08:24,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:08:24,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:08:24,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:08:24,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:08:24,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:08:24,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:08:24,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:08:24,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:08:24,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:08:24,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:08:24,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:08:24,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:08:24,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:08:24,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:08:24,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:08:24,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:08:24,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:08:24,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:08:24,726 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:08:24,727 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-10-11 15:08:24,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e167f9a4/957e95d4b05d4355b551e39dda3ea13c/FLAGad1e3a796 [2020-10-11 15:08:25,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:08:25,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-10-11 15:08:25,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e167f9a4/957e95d4b05d4355b551e39dda3ea13c/FLAGad1e3a796 [2020-10-11 15:08:25,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e167f9a4/957e95d4b05d4355b551e39dda3ea13c [2020-10-11 15:08:25,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:08:25,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:08:25,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:08:25,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:08:25,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:08:25,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:08:25" (1/1) ... [2020-10-11 15:08:25,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27771aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:25, skipping insertion in model container [2020-10-11 15:08:25,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:08:25" (1/1) ... [2020-10-11 15:08:25,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:08:25,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:08:26,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:08:26,127 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:08:26,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:08:26,282 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:08:26,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26 WrapperNode [2020-10-11 15:08:26,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:08:26,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:08:26,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:08:26,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:08:26,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:08:26,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:08:26,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:08:26,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:08:26,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (1/1) ... [2020-10-11 15:08:26,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:08:26,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:08:26,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:08:26,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:08:26,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (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 [2020-10-11 15:08:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:08:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:08:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:08:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:08:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:08:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:08:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:08:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:08:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:08:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:08:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:08:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:08:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:08:26,439 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:08:26,804 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:08:26,804 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:08:26,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:08:26 BoogieIcfgContainer [2020-10-11 15:08:26,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:08:26,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:08:26,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:08:26,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:08:26,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:08:25" (1/3) ... [2020-10-11 15:08:26,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2815d1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:08:26, skipping insertion in model container [2020-10-11 15:08:26,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:08:26" (2/3) ... [2020-10-11 15:08:26,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2815d1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:08:26, skipping insertion in model container [2020-10-11 15:08:26,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:08:26" (3/3) ... [2020-10-11 15:08:26,816 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-10-11 15:08:26,827 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:08:26,828 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:08:26,836 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:08:26,837 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:08:26,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,864 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,865 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,868 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,868 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,868 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,868 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,869 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,869 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:08:26,901 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:08:26,923 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:08:26,923 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:08:26,923 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:08:26,923 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:08:26,923 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:08:26,924 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:08:26,924 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:08:26,924 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:08:26,938 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:08:26,940 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-11 15:08:26,943 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-11 15:08:26,945 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-11 15:08:26,989 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-11 15:08:26,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:08:26,995 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:08:26,997 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:08:28,634 INFO L132 LiptonReduction]: Checked pairs total: 2695 [2020-10-11 15:08:28,635 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-11 15:08:28,641 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-11 15:08:28,669 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:08:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:08:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:08:28,680 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:28,681 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:28,681 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:28,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:28,688 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-10-11 15:08:28,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:28,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757766757] [2020-10-11 15:08:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:28,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757766757] [2020-10-11 15:08:28,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:28,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:08:28,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472033672] [2020-10-11 15:08:28,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:08:28,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:28,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:08:28,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:08:28,977 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:08:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,026 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-11 15:08:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:08:29,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:08:29,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,044 INFO L225 Difference]: With dead ends: 282 [2020-10-11 15:08:29,045 INFO L226 Difference]: Without dead ends: 218 [2020-10-11 15:08:29,046 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 [2020-10-11 15:08:29,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-11 15:08:29,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-11 15:08:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-11 15:08:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-11 15:08:29,124 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-11 15:08:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,126 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-11 15:08:29,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:08:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-11 15:08:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:08:29,127 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:29,128 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:29,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:08:29,128 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-10-11 15:08:29,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:29,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628360301] [2020-10-11 15:08:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:29,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628360301] [2020-10-11 15:08:29,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:29,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:08:29,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908409739] [2020-10-11 15:08:29,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:08:29,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:29,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:08:29,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:08:29,247 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-11 15:08:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,274 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-11 15:08:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:08:29,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:08:29,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,277 INFO L225 Difference]: With dead ends: 242 [2020-10-11 15:08:29,277 INFO L226 Difference]: Without dead ends: 146 [2020-10-11 15:08:29,278 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 [2020-10-11 15:08:29,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-11 15:08:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-11 15:08:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-11 15:08:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-11 15:08:29,292 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-11 15:08:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,293 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-11 15:08:29,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:08:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-11 15:08:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:08:29,294 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:29,295 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:29,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:08:29,295 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:29,295 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-10-11 15:08:29,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:29,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012180789] [2020-10-11 15:08:29,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:29,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012180789] [2020-10-11 15:08:29,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:29,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:08:29,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550694950] [2020-10-11 15:08:29,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:08:29,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:29,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:08:29,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:08:29,430 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-10-11 15:08:29,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,466 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-10-11 15:08:29,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:08:29,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:08:29,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,468 INFO L225 Difference]: With dead ends: 165 [2020-10-11 15:08:29,468 INFO L226 Difference]: Without dead ends: 125 [2020-10-11 15:08:29,469 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 [2020-10-11 15:08:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-11 15:08:29,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-11 15:08:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-11 15:08:29,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-10-11 15:08:29,479 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-10-11 15:08:29,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,480 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-10-11 15:08:29,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:08:29,480 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-10-11 15:08:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:08:29,481 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:29,481 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:29,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:08:29,482 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:29,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:29,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1227187402, now seen corresponding path program 1 times [2020-10-11 15:08:29,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:29,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174188519] [2020-10-11 15:08:29,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:29,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174188519] [2020-10-11 15:08:29,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:29,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:08:29,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755418397] [2020-10-11 15:08:29,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:08:29,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:29,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:08:29,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:08:29,565 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-10-11 15:08:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,610 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-10-11 15:08:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:08:29,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 15:08:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,612 INFO L225 Difference]: With dead ends: 122 [2020-10-11 15:08:29,612 INFO L226 Difference]: Without dead ends: 97 [2020-10-11 15:08:29,612 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 [2020-10-11 15:08:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-11 15:08:29,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-11 15:08:29,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-11 15:08:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-11 15:08:29,620 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-10-11 15:08:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,620 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-11 15:08:29,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:08:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-11 15:08:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:08:29,622 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:29,622 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:29,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:08:29,622 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:29,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-10-11 15:08:29,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:29,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778372523] [2020-10-11 15:08:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:29,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778372523] [2020-10-11 15:08:29,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:29,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:08:29,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919063559] [2020-10-11 15:08:29,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:08:29,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:29,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:08:29,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:08:29,724 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-10-11 15:08:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,793 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-10-11 15:08:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:08:29,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:08:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,794 INFO L225 Difference]: With dead ends: 92 [2020-10-11 15:08:29,795 INFO L226 Difference]: Without dead ends: 84 [2020-10-11 15:08:29,795 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:08:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-11 15:08:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-11 15:08:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-11 15:08:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-10-11 15:08:29,808 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-10-11 15:08:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,808 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-10-11 15:08:29,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:08:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-10-11 15:08:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:08:29,812 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:29,813 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:29,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:08:29,813 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:29,813 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-10-11 15:08:29,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:29,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443502966] [2020-10-11 15:08:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:29,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443502966] [2020-10-11 15:08:29,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:29,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:08:29,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161969310] [2020-10-11 15:08:29,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:08:29,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:29,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:08:29,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:08:29,890 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-10-11 15:08:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,906 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-10-11 15:08:29,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:08:29,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:08:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,907 INFO L225 Difference]: With dead ends: 115 [2020-10-11 15:08:29,907 INFO L226 Difference]: Without dead ends: 54 [2020-10-11 15:08:29,908 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 [2020-10-11 15:08:29,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-11 15:08:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-11 15:08:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-11 15:08:29,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-11 15:08:29,912 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-11 15:08:29,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,913 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-11 15:08:29,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:08:29,913 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-11 15:08:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:08:29,917 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:08:29,917 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:08:29,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:08:29,918 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:08:29,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:08:29,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-10-11 15:08:29,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:08:29,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756424887] [2020-10-11 15:08:29,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:08:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:08:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:08:29,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756424887] [2020-10-11 15:08:29,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:08:29,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:08:29,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447688525] [2020-10-11 15:08:29,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:08:29,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:08:29,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:08:29,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:08:29,979 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-11 15:08:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:08:29,994 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-10-11 15:08:29,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:08:29,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:08:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:08:29,995 INFO L225 Difference]: With dead ends: 53 [2020-10-11 15:08:29,995 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:08:29,996 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 [2020-10-11 15:08:29,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:08:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:08:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:08:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:08:29,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:08:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:08:29,997 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:08:29,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:08:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:08:29,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:08:29,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:08:30,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:08:30 BasicIcfg [2020-10-11 15:08:30,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:08:30,007 INFO L168 Benchmark]: Toolchain (without parser) took 4417.38 ms. Allocated memory was 248.0 MB in the beginning and 371.2 MB in the end (delta: 123.2 MB). Free memory was 204.4 MB in the beginning and 246.0 MB in the end (delta: -41.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:08:30,013 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:08:30,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.83 ms. Allocated memory was 248.0 MB in the beginning and 307.2 MB in the end (delta: 59.2 MB). Free memory was 204.4 MB in the beginning and 262.5 MB in the end (delta: -58.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:08:30,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.55 ms. Allocated memory is still 307.2 MB. Free memory is still 260.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:08:30,017 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 ms. Allocated memory is still 307.2 MB. Free memory was 260.0 MB in the beginning and 257.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:08:30,017 INFO L168 Benchmark]: RCFGBuilder took 446.81 ms. Allocated memory is still 307.2 MB. Free memory was 257.5 MB in the beginning and 235.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:08:30,018 INFO L168 Benchmark]: TraceAbstraction took 3194.79 ms. Allocated memory was 307.2 MB in the beginning and 371.2 MB in the end (delta: 64.0 MB). Free memory was 235.4 MB in the beginning and 246.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 53.3 MB. Max. memory is 14.2 GB. [2020-10-11 15:08:30,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 694.83 ms. Allocated memory was 248.0 MB in the beginning and 307.2 MB in the end (delta: 59.2 MB). Free memory was 204.4 MB in the beginning and 262.5 MB in the end (delta: -58.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.55 ms. Allocated memory is still 307.2 MB. Free memory is still 260.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.19 ms. Allocated memory is still 307.2 MB. Free memory was 260.0 MB in the beginning and 257.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 446.81 ms. Allocated memory is still 307.2 MB. Free memory was 257.5 MB in the beginning and 235.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3194.79 ms. Allocated memory was 307.2 MB in the beginning and 371.2 MB in the end (delta: 64.0 MB). Free memory was 235.4 MB in the beginning and 246.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 53.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 846 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 79 PlacesBefore, 31 PlacesAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 59 TotalNumberOfCompositions, 2695 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 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 137 SDtfs, 139 SDslu, 182 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2865 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...