/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:15:43,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:15:43,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:15:43,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:15:43,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:15:43,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:15:43,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:15:43,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:15:43,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:15:43,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:15:43,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:15:43,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:15:43,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:15:43,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:15:43,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:15:43,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:15:43,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:15:43,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:15:43,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:15:43,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:15:43,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:15:43,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:15:43,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:15:43,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:15:43,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:15:43,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:15:43,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:15:43,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:15:43,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:15:43,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:15:43,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:15:43,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:15:43,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:15:43,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:15:43,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:15:43,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:15:43,884 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.epf [2020-11-11 18:15:43,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:15:43,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:15:43,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:15:43,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:15:43,939 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:15:43,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:15:43,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:15:43,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:15:43,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:15:43,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:15:43,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:15:43,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:15:43,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:15:43,942 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:15:43,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:15:43,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:15:43,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:15:43,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:15:43,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:15:43,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:15:43,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:15:43,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:15:43,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:15:43,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:15:43,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:15:43,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:15:43,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:15:43,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:15:43,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:15:43,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:15:44,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:15:44,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:15:44,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:15:44,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:15:44,387 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:15:44,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-11-11 18:15:44,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79812289a/67bc5cd580b947edb97226aad808f532/FLAG1644e04b4 [2020-11-11 18:15:45,294 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:15:45,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-11-11 18:15:45,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79812289a/67bc5cd580b947edb97226aad808f532/FLAG1644e04b4 [2020-11-11 18:15:45,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79812289a/67bc5cd580b947edb97226aad808f532 [2020-11-11 18:15:45,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:15:45,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:15:45,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:15:45,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:15:45,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:15:45,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:15:45" (1/1) ... [2020-11-11 18:15:45,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@504f17e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:45, skipping insertion in model container [2020-11-11 18:15:45,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:15:45" (1/1) ... [2020-11-11 18:15:45,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:15:45,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:15:46,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:15:46,064 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:15:46,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:15:46,281 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:15:46,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46 WrapperNode [2020-11-11 18:15:46,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:15:46,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:15:46,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:15:46,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:15:46,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:15:46,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:15:46,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:15:46,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:15:46,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... [2020-11-11 18:15:46,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:15:46,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:15:46,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:15:46,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:15:46,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:15:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:15:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:15:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:15:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:15:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:15:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:15:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:15:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:15:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:15:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:15:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:15:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:15:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:15:46,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:15:46,455 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:15:47,004 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:15:47,005 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:15:47,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:15:47 BoogieIcfgContainer [2020-11-11 18:15:47,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:15:47,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:15:47,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:15:47,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:15:47,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:15:45" (1/3) ... [2020-11-11 18:15:47,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a13021c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:15:47, skipping insertion in model container [2020-11-11 18:15:47,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:15:46" (2/3) ... [2020-11-11 18:15:47,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a13021c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:15:47, skipping insertion in model container [2020-11-11 18:15:47,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:15:47" (3/3) ... [2020-11-11 18:15:47,020 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-11-11 18:15:47,038 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:15:47,038 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:15:47,042 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:15:47,043 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:15:47,091 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,092 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,092 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,093 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,093 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,096 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,097 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,097 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,102 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,102 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,124 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,124 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:15:47,128 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:15:47,145 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:15:47,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:15:47,197 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:15:47,197 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:15:47,198 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:15:47,198 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:15:47,198 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:15:47,198 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:15:47,198 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:15:47,211 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-11-11 18:15:48,489 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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) [2020-11-11 18:15:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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) [2020-11-11 18:15:48,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-11 18:15:48,583 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:48,583 INFO L494 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] [2020-11-11 18:15:48,584 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:48,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:48,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1260626285, now seen corresponding path program 1 times [2020-11-11 18:15:48,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:48,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264636115] [2020-11-11 18:15:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:49,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264636115] [2020-11-11 18:15:49,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:49,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:49,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453948024] [2020-11-11 18:15:49,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:49,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:49,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:49,073 INFO L87 Difference]: Start difference. First operand has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2020-11-11 18:15:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:49,467 INFO L93 Difference]: Finished difference Result 13206 states and 46042 transitions. [2020-11-11 18:15:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2020-11-11 18:15:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:49,538 INFO L225 Difference]: With dead ends: 13206 [2020-11-11 18:15:49,538 INFO L226 Difference]: Without dead ends: 5051 [2020-11-11 18:15:49,540 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2020-11-11 18:15:49,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 5051. [2020-11-11 18:15:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 5050 states have (on average 3.433267326732673) internal successors, (17338), 5050 states have internal predecessors, (17338), 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) [2020-11-11 18:15:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 17338 transitions. [2020-11-11 18:15:50,065 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 17338 transitions. Word has length 40 [2020-11-11 18:15:50,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:50,067 INFO L481 AbstractCegarLoop]: Abstraction has 5051 states and 17338 transitions. [2020-11-11 18:15:50,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2020-11-11 18:15:50,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 17338 transitions. [2020-11-11 18:15:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:15:50,084 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:50,084 INFO L494 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] [2020-11-11 18:15:50,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:15:50,085 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:50,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2024610516, now seen corresponding path program 1 times [2020-11-11 18:15:50,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:50,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653755143] [2020-11-11 18:15:50,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:50,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653755143] [2020-11-11 18:15:50,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:50,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:50,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295034738] [2020-11-11 18:15:50,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:50,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:50,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:50,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:50,253 INFO L87 Difference]: Start difference. First operand 5051 states and 17338 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-11-11 18:15:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:50,517 INFO L93 Difference]: Finished difference Result 6015 states and 20407 transitions. [2020-11-11 18:15:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:50,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2020-11-11 18:15:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:50,567 INFO L225 Difference]: With dead ends: 6015 [2020-11-11 18:15:50,567 INFO L226 Difference]: Without dead ends: 4811 [2020-11-11 18:15:50,568 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2020-11-11 18:15:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4811. [2020-11-11 18:15:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 4810 states have (on average 3.414968814968815) internal successors, (16426), 4810 states have internal predecessors, (16426), 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) [2020-11-11 18:15:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 16426 transitions. [2020-11-11 18:15:50,848 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 16426 transitions. Word has length 42 [2020-11-11 18:15:50,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:50,849 INFO L481 AbstractCegarLoop]: Abstraction has 4811 states and 16426 transitions. [2020-11-11 18:15:50,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-11-11 18:15:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 16426 transitions. [2020-11-11 18:15:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-11 18:15:50,865 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:50,865 INFO L494 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] [2020-11-11 18:15:50,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:15:50,865 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:50,866 INFO L82 PathProgramCache]: Analyzing trace with hash 55793164, now seen corresponding path program 1 times [2020-11-11 18:15:50,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:50,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776933725] [2020-11-11 18:15:50,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:50,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776933725] [2020-11-11 18:15:50,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:50,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:50,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466003757] [2020-11-11 18:15:50,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:50,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:50,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:50,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:50,999 INFO L87 Difference]: Start difference. First operand 4811 states and 16426 transitions. 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) [2020-11-11 18:15:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:51,293 INFO L93 Difference]: Finished difference Result 7887 states and 26373 transitions. [2020-11-11 18:15:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:51,294 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 [2020-11-11 18:15:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:51,346 INFO L225 Difference]: With dead ends: 7887 [2020-11-11 18:15:51,346 INFO L226 Difference]: Without dead ends: 5483 [2020-11-11 18:15:51,347 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2020-11-11 18:15:51,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 4363. [2020-11-11 18:15:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 4362 states have (on average 3.3344795965153597) internal successors, (14545), 4362 states have internal predecessors, (14545), 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) [2020-11-11 18:15:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 14545 transitions. [2020-11-11 18:15:51,561 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 14545 transitions. Word has length 43 [2020-11-11 18:15:51,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:51,561 INFO L481 AbstractCegarLoop]: Abstraction has 4363 states and 14545 transitions. [2020-11-11 18:15:51,562 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) [2020-11-11 18:15:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 14545 transitions. [2020-11-11 18:15:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:15:51,575 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:51,575 INFO L494 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] [2020-11-11 18:15:51,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:15:51,575 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:51,576 INFO L82 PathProgramCache]: Analyzing trace with hash -353221213, now seen corresponding path program 1 times [2020-11-11 18:15:51,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:51,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489943239] [2020-11-11 18:15:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:51,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489943239] [2020-11-11 18:15:51,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:51,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:51,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375845640] [2020-11-11 18:15:51,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:51,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:51,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:51,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:51,803 INFO L87 Difference]: Start difference. First operand 4363 states and 14545 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-11 18:15:51,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:51,983 INFO L93 Difference]: Finished difference Result 4983 states and 16496 transitions. [2020-11-11 18:15:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:51,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2020-11-11 18:15:51,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:52,005 INFO L225 Difference]: With dead ends: 4983 [2020-11-11 18:15:52,005 INFO L226 Difference]: Without dead ends: 4283 [2020-11-11 18:15:52,006 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2020-11-11 18:15:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 4283. [2020-11-11 18:15:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4282 states have (on average 3.325782344698739) internal successors, (14241), 4282 states have internal predecessors, (14241), 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) [2020-11-11 18:15:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 14241 transitions. [2020-11-11 18:15:52,163 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 14241 transitions. Word has length 44 [2020-11-11 18:15:52,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:52,164 INFO L481 AbstractCegarLoop]: Abstraction has 4283 states and 14241 transitions. [2020-11-11 18:15:52,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-11 18:15:52,165 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 14241 transitions. [2020-11-11 18:15:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:15:52,178 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:52,178 INFO L494 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] [2020-11-11 18:15:52,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:15:52,178 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:52,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:52,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1494172039, now seen corresponding path program 1 times [2020-11-11 18:15:52,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:52,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804112946] [2020-11-11 18:15:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:52,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804112946] [2020-11-11 18:15:52,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:52,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:52,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594103670] [2020-11-11 18:15:52,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:52,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:52,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:52,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:52,324 INFO L87 Difference]: Start difference. First operand 4283 states and 14241 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-11 18:15:52,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:52,616 INFO L93 Difference]: Finished difference Result 7087 states and 23204 transitions. [2020-11-11 18:15:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:52,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-11-11 18:15:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:52,647 INFO L225 Difference]: With dead ends: 7087 [2020-11-11 18:15:52,647 INFO L226 Difference]: Without dead ends: 5019 [2020-11-11 18:15:52,648 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2020-11-11 18:15:52,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 3963. [2020-11-11 18:15:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3962 states have (on average 3.2458354366481577) internal successors, (12860), 3962 states have internal predecessors, (12860), 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) [2020-11-11 18:15:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 12860 transitions. [2020-11-11 18:15:52,851 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 12860 transitions. Word has length 45 [2020-11-11 18:15:52,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:52,852 INFO L481 AbstractCegarLoop]: Abstraction has 3963 states and 12860 transitions. [2020-11-11 18:15:52,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-11 18:15:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 12860 transitions. [2020-11-11 18:15:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:15:52,864 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:52,864 INFO L494 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] [2020-11-11 18:15:52,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:15:52,865 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:52,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:52,866 INFO L82 PathProgramCache]: Analyzing trace with hash -845125837, now seen corresponding path program 1 times [2020-11-11 18:15:52,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:52,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088170587] [2020-11-11 18:15:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:53,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088170587] [2020-11-11 18:15:53,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:53,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:53,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042007947] [2020-11-11 18:15:53,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:53,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:53,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:53,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:53,027 INFO L87 Difference]: Start difference. First operand 3963 states and 12860 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-11 18:15:53,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:53,188 INFO L93 Difference]: Finished difference Result 5935 states and 18915 transitions. [2020-11-11 18:15:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:53,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-11-11 18:15:53,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:53,207 INFO L225 Difference]: With dead ends: 5935 [2020-11-11 18:15:53,207 INFO L226 Difference]: Without dead ends: 3995 [2020-11-11 18:15:53,208 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:53,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2020-11-11 18:15:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3195. [2020-11-11 18:15:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3194 states have (on average 3.138071383844709) internal successors, (10023), 3194 states have internal predecessors, (10023), 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) [2020-11-11 18:15:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 10023 transitions. [2020-11-11 18:15:53,354 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 10023 transitions. Word has length 45 [2020-11-11 18:15:53,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:53,355 INFO L481 AbstractCegarLoop]: Abstraction has 3195 states and 10023 transitions. [2020-11-11 18:15:53,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-11 18:15:53,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 10023 transitions. [2020-11-11 18:15:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-11 18:15:53,366 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:53,366 INFO L494 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] [2020-11-11 18:15:53,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:15:53,367 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:53,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:53,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1287547266, now seen corresponding path program 1 times [2020-11-11 18:15:53,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:53,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352114695] [2020-11-11 18:15:53,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:53,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352114695] [2020-11-11 18:15:53,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:53,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:15:53,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684798411] [2020-11-11 18:15:53,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:15:53,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:53,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:15:53,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:15:53,487 INFO L87 Difference]: Start difference. First operand 3195 states and 10023 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2020-11-11 18:15:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:53,687 INFO L93 Difference]: Finished difference Result 3932 states and 12060 transitions. [2020-11-11 18:15:53,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:15:53,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2020-11-11 18:15:53,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:53,701 INFO L225 Difference]: With dead ends: 3932 [2020-11-11 18:15:53,701 INFO L226 Difference]: Without dead ends: 2814 [2020-11-11 18:15:53,702 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:15:53,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2020-11-11 18:15:53,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2020-11-11 18:15:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 3.0646996089584073) internal successors, (8621), 2813 states have internal predecessors, (8621), 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) [2020-11-11 18:15:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 8621 transitions. [2020-11-11 18:15:53,811 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 8621 transitions. Word has length 46 [2020-11-11 18:15:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:53,811 INFO L481 AbstractCegarLoop]: Abstraction has 2814 states and 8621 transitions. [2020-11-11 18:15:53,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2020-11-11 18:15:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 8621 transitions. [2020-11-11 18:15:53,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-11 18:15:53,820 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:53,821 INFO L494 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] [2020-11-11 18:15:53,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:15:53,822 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:53,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:53,823 INFO L82 PathProgramCache]: Analyzing trace with hash -892640957, now seen corresponding path program 1 times [2020-11-11 18:15:53,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:53,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637634576] [2020-11-11 18:15:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:53,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637634576] [2020-11-11 18:15:53,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:53,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:15:53,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389285129] [2020-11-11 18:15:53,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:15:53,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:53,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:15:53,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:15:53,976 INFO L87 Difference]: Start difference. First operand 2814 states and 8621 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-11 18:15:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:54,161 INFO L93 Difference]: Finished difference Result 2715 states and 8024 transitions. [2020-11-11 18:15:54,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:15:54,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-11-11 18:15:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:54,169 INFO L225 Difference]: With dead ends: 2715 [2020-11-11 18:15:54,169 INFO L226 Difference]: Without dead ends: 1747 [2020-11-11 18:15:54,170 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:15:54,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2020-11-11 18:15:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1747. [2020-11-11 18:15:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1746 states have (on average 2.892898052691867) internal successors, (5051), 1746 states have internal predecessors, (5051), 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) [2020-11-11 18:15:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 5051 transitions. [2020-11-11 18:15:54,234 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 5051 transitions. Word has length 48 [2020-11-11 18:15:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:54,235 INFO L481 AbstractCegarLoop]: Abstraction has 1747 states and 5051 transitions. [2020-11-11 18:15:54,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-11 18:15:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 5051 transitions. [2020-11-11 18:15:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:15:54,240 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:15:54,240 INFO L494 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] [2020-11-11 18:15:54,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:15:54,241 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:15:54,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:15:54,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1960903364, now seen corresponding path program 1 times [2020-11-11 18:15:54,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:15:54,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331744803] [2020-11-11 18:15:54,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:15:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:15:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:15:54,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331744803] [2020-11-11 18:15:54,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:15:54,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:15:54,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48792453] [2020-11-11 18:15:54,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:15:54,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:15:54,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:15:54,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:15:54,372 INFO L87 Difference]: Start difference. First operand 1747 states and 5051 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2020-11-11 18:15:54,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:15:54,490 INFO L93 Difference]: Finished difference Result 1018 states and 2774 transitions. [2020-11-11 18:15:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-11 18:15:54,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2020-11-11 18:15:54,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:15:54,491 INFO L225 Difference]: With dead ends: 1018 [2020-11-11 18:15:54,491 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:15:54,492 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:15:54,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:15:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:15:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-11 18:15:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:15:54,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-11-11 18:15:54,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:15:54,493 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:15:54,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2020-11-11 18:15:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:15:54,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:15:54,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:15:54,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:15:54 BasicIcfg [2020-11-11 18:15:54,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:15:54,502 INFO L168 Benchmark]: Toolchain (without parser) took 8990.88 ms. Allocated memory was 316.7 MB in the beginning and 1.2 GB in the end (delta: 853.5 MB). Free memory was 291.2 MB in the beginning and 662.7 MB in the end (delta: -371.5 MB). Peak memory consumption was 483.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:15:54,503 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 316.7 MB. Free memory is still 287.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:15:54,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.12 ms. Allocated memory is still 316.7 MB. Free memory was 290.5 MB in the beginning and 287.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:15:54,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 316.7 MB. Free memory was 287.3 MB in the beginning and 285.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:15:54,505 INFO L168 Benchmark]: Boogie Preprocessor took 29.86 ms. Allocated memory is still 316.7 MB. Free memory was 285.2 MB in the beginning and 284.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:15:54,506 INFO L168 Benchmark]: RCFGBuilder took 642.12 ms. Allocated memory is still 316.7 MB. Free memory was 283.6 MB in the beginning and 261.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:15:54,507 INFO L168 Benchmark]: TraceAbstraction took 7488.72 ms. Allocated memory was 316.7 MB in the beginning and 1.2 GB in the end (delta: 853.5 MB). Free memory was 261.0 MB in the beginning and 662.7 MB in the end (delta: -401.7 MB). Peak memory consumption was 452.9 MB. Max. memory is 16.0 GB. [2020-11-11 18:15:54,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 316.7 MB. Free memory is still 287.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 764.12 ms. Allocated memory is still 316.7 MB. Free memory was 290.5 MB in the beginning and 287.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 316.7 MB. Free memory was 287.3 MB in the beginning and 285.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.86 ms. Allocated memory is still 316.7 MB. Free memory was 285.2 MB in the beginning and 284.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 642.12 ms. Allocated memory is still 316.7 MB. Free memory was 283.6 MB in the beginning and 261.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7488.72 ms. Allocated memory was 316.7 MB in the beginning and 1.2 GB in the end (delta: 853.5 MB). Free memory was 261.0 MB in the beginning and 662.7 MB in the end (delta: -401.7 MB). Peak memory consumption was 452.9 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 938 SDtfs, 1156 SDslu, 2819 SDs, 0 SdLazy, 282 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9846occurred 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: 1.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 2976 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 394 ConstructedInterpolants, 0 QuantifiedInterpolants, 45448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...