/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:28:28,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:28:28,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:28:28,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:28:28,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:28:28,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:28:28,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:28:28,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:28:28,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:28:28,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:28:28,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:28:28,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:28:28,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:28:28,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:28:28,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:28:28,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:28:28,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:28:28,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:28:28,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:28:28,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:28:28,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:28:28,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:28:28,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:28:28,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:28:28,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:28:28,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:28:28,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:28:28,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:28:28,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:28:28,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:28:28,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:28:28,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:28:28,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:28:28,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:28:28,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:28:28,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:28:28,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2021-01-20 21:28:28,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:28:28,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:28:28,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:28:28,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:28:28,384 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:28:28,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:28:28,385 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:28:28,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:28:28,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:28:28,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:28:28,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:28:28,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:28:28,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:28:28,388 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:28:28,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:28:28,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:28:28,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:28:28,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:28:28,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:28:28,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:28:28,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:28:28,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:28:28,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:28:28,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:28:28,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:28:28,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:28:28,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:28:28,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:28:28,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:28:28,392 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:28:28,392 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:28:28,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:28:28,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:28:28,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:28:28,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:28:28,921 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:28:28,922 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:28:28,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2021-01-20 21:28:29,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68f5d6e3/9d3a529822d2414ca6117ec43fb02a46/FLAGc813d4c5f [2021-01-20 21:28:29,803 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:28:29,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2021-01-20 21:28:29,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68f5d6e3/9d3a529822d2414ca6117ec43fb02a46/FLAGc813d4c5f [2021-01-20 21:28:30,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68f5d6e3/9d3a529822d2414ca6117ec43fb02a46 [2021-01-20 21:28:30,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:28:30,108 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:28:30,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:28:30,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:28:30,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:28:30,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b29bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30, skipping insertion in model container [2021-01-20 21:28:30,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:28:30,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:28:30,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:28:30,622 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:28:30,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:28:30,815 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:28:30,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30 WrapperNode [2021-01-20 21:28:30,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:28:30,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:28:30,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:28:30,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:28:30,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:28:30,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:28:30,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:28:30,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:28:30,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (1/1) ... [2021-01-20 21:28:30,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:28:30,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:28:30,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:28:30,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:28:30,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (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 [2021-01-20 21:28:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:28:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:28:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:28:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:28:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:28:30,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:28:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:28:30,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:28:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:28:30,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:28:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:28:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:28:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:28:30,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:28:30,993 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:28:31,413 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:28:31,414 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:28:31,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:28:31 BoogieIcfgContainer [2021-01-20 21:28:31,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:28:31,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:28:31,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:28:31,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:28:31,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:28:30" (1/3) ... [2021-01-20 21:28:31,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90c4de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:28:31, skipping insertion in model container [2021-01-20 21:28:31,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:28:30" (2/3) ... [2021-01-20 21:28:31,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90c4de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:28:31, skipping insertion in model container [2021-01-20 21:28:31,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:28:31" (3/3) ... [2021-01-20 21:28:31,426 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2021-01-20 21:28:31,445 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:28:31,445 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:28:31,449 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:28:31,450 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:28:31,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,497 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,497 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,505 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,506 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,508 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,509 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,509 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,509 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:28:31,512 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:28:31,529 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:28:31,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:28:31,557 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:28:31,558 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:28:31,558 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:28:31,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:28:31,558 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:28:31,558 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:28:31,558 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:28:31,572 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 21:28:32,723 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:32,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:28:32,842 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:32,843 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:32,843 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:32,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:32,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2021-01-20 21:28:32,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:32,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663965199] [2021-01-20 21:28:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:33,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663965199] [2021-01-20 21:28:33,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:33,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:28:33,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71139022] [2021-01-20 21:28:33,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:28:33,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:33,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:28:33,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:28:33,582 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:33,975 INFO L93 Difference]: Finished difference Result 9342 states and 31814 transitions. [2021-01-20 21:28:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:28:33,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-01-20 21:28:33,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:33,982 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:33,982 INFO L78 Accepts]: Start accepts. Automaton has 9342 states and 31814 transitions. Word has length 43 [2021-01-20 21:28:33,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:33,984 INFO L481 AbstractCegarLoop]: Abstraction has 9342 states and 31814 transitions. [2021-01-20 21:28:33,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:33,985 INFO L276 IsEmpty]: Start isEmpty. Operand 9342 states and 31814 transitions. [2021-01-20 21:28:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:28:34,007 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:34,007 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:34,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:28:34,008 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2021-01-20 21:28:34,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:34,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437515701] [2021-01-20 21:28:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:34,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437515701] [2021-01-20 21:28:34,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:34,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:34,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752477555] [2021-01-20 21:28:34,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:34,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:34,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:34,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:34,241 INFO L87 Difference]: Start difference. First operand 9342 states and 31814 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:34,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:34,530 INFO L93 Difference]: Finished difference Result 7281 states and 23852 transitions. [2021-01-20 21:28:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:28:34,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 21:28:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:34,532 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:28:34,532 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 23852 transitions. Word has length 47 [2021-01-20 21:28:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:34,533 INFO L481 AbstractCegarLoop]: Abstraction has 7281 states and 23852 transitions. [2021-01-20 21:28:34,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 23852 transitions. [2021-01-20 21:28:34,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:28:34,552 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:34,553 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:34,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:28:34,553 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:34,554 INFO L82 PathProgramCache]: Analyzing trace with hash 708225082, now seen corresponding path program 1 times [2021-01-20 21:28:34,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:34,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880574570] [2021-01-20 21:28:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:34,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880574570] [2021-01-20 21:28:34,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:34,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:28:34,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346371753] [2021-01-20 21:28:34,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:28:34,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:34,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:28:34,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:28:34,772 INFO L87 Difference]: Start difference. First operand 7281 states and 23852 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:35,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:35,159 INFO L93 Difference]: Finished difference Result 5364 states and 17390 transitions. [2021-01-20 21:28:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:28:35,160 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:28:35,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:35,161 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:28:35,161 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 17390 transitions. Word has length 51 [2021-01-20 21:28:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:35,162 INFO L481 AbstractCegarLoop]: Abstraction has 5364 states and 17390 transitions. [2021-01-20 21:28:35,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 17390 transitions. [2021-01-20 21:28:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:28:35,179 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:35,179 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:35,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:28:35,180 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:35,181 INFO L82 PathProgramCache]: Analyzing trace with hash 139688856, now seen corresponding path program 1 times [2021-01-20 21:28:35,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:35,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690863039] [2021-01-20 21:28:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:35,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690863039] [2021-01-20 21:28:35,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:35,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:35,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982011881] [2021-01-20 21:28:35,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:35,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:35,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:35,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:35,330 INFO L87 Difference]: Start difference. First operand 5364 states and 17390 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:35,503 INFO L93 Difference]: Finished difference Result 7994 states and 25640 transitions. [2021-01-20 21:28:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:28:35,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:28:35,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:35,506 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:35,506 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 25640 transitions. Word has length 55 [2021-01-20 21:28:35,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:35,508 INFO L481 AbstractCegarLoop]: Abstraction has 7994 states and 25640 transitions. [2021-01-20 21:28:35,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 25640 transitions. [2021-01-20 21:28:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:28:35,532 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:35,533 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:35,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:28:35,533 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:35,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:35,535 INFO L82 PathProgramCache]: Analyzing trace with hash -621080086, now seen corresponding path program 2 times [2021-01-20 21:28:35,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:35,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164749635] [2021-01-20 21:28:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:35,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164749635] [2021-01-20 21:28:35,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:35,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:35,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120315067] [2021-01-20 21:28:35,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:35,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:35,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:35,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:35,800 INFO L87 Difference]: Start difference. First operand 7994 states and 25640 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:36,015 INFO L93 Difference]: Finished difference Result 12509 states and 39599 transitions. [2021-01-20 21:28:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:28:36,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:28:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:36,019 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:36,020 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 39599 transitions. Word has length 55 [2021-01-20 21:28:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:36,021 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 39599 transitions. [2021-01-20 21:28:36,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:36,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 39599 transitions. [2021-01-20 21:28:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:28:36,053 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:28:36,053 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:28:36,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:28:36,053 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:28:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:28:36,055 INFO L82 PathProgramCache]: Analyzing trace with hash 952401922, now seen corresponding path program 3 times [2021-01-20 21:28:36,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:28:36,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367190565] [2021-01-20 21:28:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:28:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:28:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:28:36,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367190565] [2021-01-20 21:28:36,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:28:36,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:28:36,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239747941] [2021-01-20 21:28:36,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:28:36,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:28:36,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:28:36,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:28:36,238 INFO L87 Difference]: Start difference. First operand 12509 states and 39599 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:28:36,666 INFO L93 Difference]: Finished difference Result 18641 states and 58535 transitions. [2021-01-20 21:28:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:28:36,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:28:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:28:36,668 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:28:36,668 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 58535 transitions. Word has length 55 [2021-01-20 21:28:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:28:36,669 INFO L481 AbstractCegarLoop]: Abstraction has 18641 states and 58535 transitions. [2021-01-20 21:28:36,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:28:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 58535 transitions. [2021-01-20 21:28:36,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:28:36,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:28:36,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:28:36 BasicIcfg [2021-01-20 21:28:36,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:28:36,742 INFO L168 Benchmark]: Toolchain (without parser) took 6629.82 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 843.1 MB). Free memory was 275.4 MB in the beginning and 993.0 MB in the end (delta: -717.6 MB). Peak memory consumption was 127.3 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:36,745 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 270.2 MB in the end (delta: 65.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:28:36,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.52 ms. Allocated memory is still 302.0 MB. Free memory was 275.1 MB in the beginning and 274.4 MB in the end (delta: 732.2 kB). Peak memory consumption was 29.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:36,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.57 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:36,748 INFO L168 Benchmark]: Boogie Preprocessor took 29.13 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 271.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:28:36,749 INFO L168 Benchmark]: RCFGBuilder took 518.66 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 248.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:36,749 INFO L168 Benchmark]: TraceAbstraction took 5318.37 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 843.1 MB). Free memory was 248.2 MB in the beginning and 993.0 MB in the end (delta: -744.8 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.0 GB. [2021-01-20 21:28:36,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 270.2 MB in the end (delta: 65.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 706.52 ms. Allocated memory is still 302.0 MB. Free memory was 275.1 MB in the beginning and 274.4 MB in the end (delta: 732.2 kB). Peak memory consumption was 29.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.57 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.13 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 271.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 518.66 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 248.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5318.37 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 843.1 MB). Free memory was 248.2 MB in the beginning and 993.0 MB in the end (delta: -744.8 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 690 SDtfs, 1044 SDslu, 2542 SDs, 0 SdLazy, 250 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18641occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 38064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...