/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:21:52,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:21:52,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:21:52,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:21:52,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:21:52,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:21:52,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:21:52,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:21:52,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:21:52,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:21:52,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:21:52,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:21:52,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:21:52,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:21:52,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:21:52,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:21:52,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:21:52,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:21:52,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:21:52,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:21:52,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:21:52,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:21:52,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:21:52,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:21:52,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:21:52,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:21:52,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:21:52,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:21:52,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:21:52,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:21:52,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:21:52,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:21:52,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:21:52,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:21:52,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:21:52,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:21:52,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:21:52,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:21:52,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:21:52,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:21:52,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:21:52,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:21:52,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:21:52,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:21:52,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:21:52,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:21:52,265 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:21:52,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:21:52,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:21:52,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:21:52,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:21:52,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:21:52,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:21:52,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:21:52,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:21:52,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:21:52,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:21:52,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:21:52,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:21:52,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:21:52,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:21:52,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:21:52,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:21:52,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:21:52,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:21:52,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:21:52,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:21:52,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:21:52,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:21:52,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:21:52,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:21:52,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:21:52,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:21:52,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:21:52,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:21:52,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:21:52,566 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:21:52,567 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-16 11:21:52,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d54ca29b1/7c50a52c429d4471ab6427c5b4b62760/FLAG7c8fdeead [2020-10-16 11:21:53,121 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:21:53,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-16 11:21:53,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d54ca29b1/7c50a52c429d4471ab6427c5b4b62760/FLAG7c8fdeead [2020-10-16 11:21:53,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d54ca29b1/7c50a52c429d4471ab6427c5b4b62760 [2020-10-16 11:21:53,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:21:53,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:21:53,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:21:53,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:21:53,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:21:53,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:21:53" (1/1) ... [2020-10-16 11:21:53,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a922c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:53, skipping insertion in model container [2020-10-16 11:21:53,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:21:53" (1/1) ... [2020-10-16 11:21:53,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:21:53,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:21:53,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:21:53,989 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:21:54,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:21:54,129 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:21:54,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54 WrapperNode [2020-10-16 11:21:54,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:21:54,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:21:54,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:21:54,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:21:54,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:21:54,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:21:54,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:21:54,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:21:54,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... [2020-10-16 11:21:54,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:21:54,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:21:54,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:21:54,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:21:54,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:21:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:21:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:21:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:21:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:21:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:21:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:21:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:21:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:21:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:21:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:21:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:21:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:21:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:21:54,278 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:21:54,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:21:54,577 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:21:54,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:21:54 BoogieIcfgContainer [2020-10-16 11:21:54,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:21:54,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:21:54,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:21:54,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:21:54,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:21:53" (1/3) ... [2020-10-16 11:21:54,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6558046c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:21:54, skipping insertion in model container [2020-10-16 11:21:54,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:21:54" (2/3) ... [2020-10-16 11:21:54,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6558046c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:21:54, skipping insertion in model container [2020-10-16 11:21:54,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:21:54" (3/3) ... [2020-10-16 11:21:54,589 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-10-16 11:21:54,603 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:21:54,603 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:21:54,613 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:21:54,614 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:21:54,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,662 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,666 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:21:54,670 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:21:54,685 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:21:54,706 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:21:54,706 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:21:54,706 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:21:54,706 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:21:54,707 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:21:54,707 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:21:54,707 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:21:54,707 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:21:54,723 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:21:54,726 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:21:54,729 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 11:21:54,731 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 11:21:54,791 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 11:21:54,791 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:21:54,797 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:21:54,802 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:21:56,143 INFO L132 LiptonReduction]: Checked pairs total: 2318 [2020-10-16 11:21:56,144 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 11:21:56,153 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 11:21:56,197 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 11:21:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 11:21:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:21:56,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:56,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:56,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:56,230 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-10-16 11:21:56,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:56,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617473505] [2020-10-16 11:21:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:56,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617473505] [2020-10-16 11:21:56,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:56,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:21:56,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559372187] [2020-10-16 11:21:56,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:21:56,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:56,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:21:56,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:21:56,422 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 11:21:56,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:56,456 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 11:21:56,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:21:56,457 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 11:21:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:56,473 INFO L225 Difference]: With dead ends: 362 [2020-10-16 11:21:56,473 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 11:21:56,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:21:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 11:21:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 11:21:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 11:21:56,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 11:21:56,549 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 11:21:56,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:56,550 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 11:21:56,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:21:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 11:21:56,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:21:56,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:56,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:56,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:21:56,553 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:56,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:56,553 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-10-16 11:21:56,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:56,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371967053] [2020-10-16 11:21:56,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:56,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371967053] [2020-10-16 11:21:56,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:56,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:21:56,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141235131] [2020-10-16 11:21:56,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:21:56,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:56,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:21:56,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:21:56,648 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 11:21:56,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:56,665 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 11:21:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:21:56,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:21:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:56,668 INFO L225 Difference]: With dead ends: 217 [2020-10-16 11:21:56,668 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 11:21:56,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:21:56,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 11:21:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 11:21:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 11:21:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 11:21:56,690 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 11:21:56,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:56,690 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 11:21:56,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:21:56,690 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 11:21:56,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:21:56,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:56,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:56,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:21:56,693 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:56,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-10-16 11:21:56,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:56,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705049559] [2020-10-16 11:21:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:56,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705049559] [2020-10-16 11:21:56,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:56,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:21:56,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780804402] [2020-10-16 11:21:56,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:21:56,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:56,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:21:56,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:21:56,798 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-16 11:21:56,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:56,822 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 11:21:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:21:56,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:21:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:56,824 INFO L225 Difference]: With dead ends: 136 [2020-10-16 11:21:56,824 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 11:21:56,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:21:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 11:21:56,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 11:21:56,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 11:21:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 11:21:56,834 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 11:21:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:56,834 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 11:21:56,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:21:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 11:21:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:21:56,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:56,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:56,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:21:56,837 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-10-16 11:21:56,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:56,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382419975] [2020-10-16 11:21:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:56,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382419975] [2020-10-16 11:21:56,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:56,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:21:56,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343732656] [2020-10-16 11:21:56,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:21:56,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:56,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:21:56,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:21:56,909 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-16 11:21:56,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:56,936 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 11:21:56,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:21:56,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 11:21:56,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:56,937 INFO L225 Difference]: With dead ends: 109 [2020-10-16 11:21:56,938 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 11:21:56,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:21:56,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 11:21:56,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 11:21:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 11:21:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 11:21:56,944 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 11:21:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:56,944 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 11:21:56,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:21:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 11:21:56,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:21:56,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:56,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:56,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:21:56,946 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:56,947 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-10-16 11:21:56,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:56,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899079609] [2020-10-16 11:21:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:57,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899079609] [2020-10-16 11:21:57,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:57,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:21:57,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463298221] [2020-10-16 11:21:57,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:21:57,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:57,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:21:57,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:21:57,039 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-16 11:21:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:57,057 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 11:21:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:21:57,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 11:21:57,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:57,059 INFO L225 Difference]: With dead ends: 135 [2020-10-16 11:21:57,059 INFO L226 Difference]: Without dead ends: 55 [2020-10-16 11:21:57,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:21:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-16 11:21:57,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-16 11:21:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-16 11:21:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-16 11:21:57,063 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-16 11:21:57,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:57,063 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-16 11:21:57,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:21:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-16 11:21:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:21:57,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:57,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:57,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:21:57,065 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:57,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:57,065 INFO L82 PathProgramCache]: Analyzing trace with hash 909729134, now seen corresponding path program 2 times [2020-10-16 11:21:57,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:57,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967146568] [2020-10-16 11:21:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:57,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967146568] [2020-10-16 11:21:57,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:57,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:21:57,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59241788] [2020-10-16 11:21:57,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:21:57,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:57,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:21:57,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:21:57,115 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-16 11:21:57,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:57,131 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-10-16 11:21:57,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:21:57,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 11:21:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:57,132 INFO L225 Difference]: With dead ends: 75 [2020-10-16 11:21:57,132 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 11:21:57,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:21:57,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 11:21:57,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 11:21:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 11:21:57,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 11:21:57,135 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 11:21:57,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:57,136 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 11:21:57,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:21:57,136 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 11:21:57,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:21:57,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:21:57,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:21:57,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:21:57,137 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:21:57,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:21:57,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-10-16 11:21:57,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:21:57,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890355103] [2020-10-16 11:21:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:21:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:21:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:21:57,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890355103] [2020-10-16 11:21:57,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:21:57,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:21:57,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718567898] [2020-10-16 11:21:57,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:21:57,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:21:57,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:21:57,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:21:57,183 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-16 11:21:57,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:21:57,194 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 11:21:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:21:57,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 11:21:57,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:21:57,195 INFO L225 Difference]: With dead ends: 36 [2020-10-16 11:21:57,195 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:21:57,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:21:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:21:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:21:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:21:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:21:57,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 11:21:57,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:21:57,197 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:21:57,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:21:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:21:57,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:21:57,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:21:57,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:21:57 BasicIcfg [2020-10-16 11:21:57,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:21:57,204 INFO L168 Benchmark]: Toolchain (without parser) took 3734.62 ms. Allocated memory was 141.6 MB in the beginning and 244.8 MB in the end (delta: 103.3 MB). Free memory was 103.2 MB in the beginning and 104.0 MB in the end (delta: -733.1 kB). Peak memory consumption was 102.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:21:57,204 INFO L168 Benchmark]: CDTParser took 1.30 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:21:57,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.06 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 161.5 MB in the end (delta: -58.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:21:57,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.46 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 158.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:21:57,207 INFO L168 Benchmark]: Boogie Preprocessor took 26.22 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:21:57,208 INFO L168 Benchmark]: RCFGBuilder took 375.66 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 135.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:21:57,209 INFO L168 Benchmark]: TraceAbstraction took 2620.31 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 135.2 MB in the beginning and 104.0 MB in the end (delta: 31.2 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:21:57,213 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.06 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 161.5 MB in the end (delta: -58.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.46 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 158.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.22 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 375.66 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 135.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2620.31 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 135.2 MB in the beginning and 104.0 MB in the end (delta: 31.2 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 839 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 69 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 32 PlacesAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2318 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 130 SDtfs, 72 SDslu, 159 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522 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...