/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:37:49,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:37:49,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:37:49,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:37:49,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:37:49,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:37:49,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:37:49,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:37:49,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:37:49,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:37:49,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:37:49,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:37:49,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:37:49,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:37:49,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:37:49,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:37:49,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:37:49,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:37:49,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:37:49,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:37:49,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:37:49,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:37:49,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:37:49,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:37:49,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:37:49,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:37:49,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:37:49,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:37:49,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:37:49,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:37:49,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:37:49,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:37:49,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:37:49,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:37:49,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:37:49,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:37:49,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:37:49,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:37:49,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:37:49,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:37:49,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:37:49,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:37:49,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:37:49,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:37:49,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:37:49,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:37:49,868 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:37:49,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:37:49,869 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:37:49,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:37:49,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:37:49,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:37:49,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:37:49,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:37:49,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:37:49,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:37:49,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:37:49,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:37:49,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:37:49,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:37:49,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:37:49,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:37:49,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:37:49,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:37:49,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:37:49,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:37:49,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:37:49,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:37:49,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:37:49,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:37:49,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:37:49,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:37:50,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:37:50,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:37:50,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:37:50,178 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:37:50,178 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:37:50,179 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-15 18:37:50,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f88290c/cfa996a3800f422b98e0b8f42d75924e/FLAGff369aa59 [2020-10-15 18:37:50,734 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:37:50,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-15 18:37:50,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f88290c/cfa996a3800f422b98e0b8f42d75924e/FLAGff369aa59 [2020-10-15 18:37:51,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f88290c/cfa996a3800f422b98e0b8f42d75924e [2020-10-15 18:37:51,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:37:51,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:37:51,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:37:51,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:37:51,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:37:51,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aaba17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51, skipping insertion in model container [2020-10-15 18:37:51,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:37:51,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:37:51,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:37:51,702 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:37:51,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:37:51,826 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:37:51,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51 WrapperNode [2020-10-15 18:37:51,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:37:51,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:37:51,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:37:51,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:37:51,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:37:51,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:37:51,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:37:51,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:37:51,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... [2020-10-15 18:37:51,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:37:51,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:37:51,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:37:51,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:37:51,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:37:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:37:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:37:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:37:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:37:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:37:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:37:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:37:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:37:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:37:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:37:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:37:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:37:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:37:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:37:51,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:37:51,970 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:37:52,295 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:37:52,296 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:37:52,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:37:52 BoogieIcfgContainer [2020-10-15 18:37:52,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:37:52,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:37:52,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:37:52,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:37:52,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:37:51" (1/3) ... [2020-10-15 18:37:52,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72835b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:37:52, skipping insertion in model container [2020-10-15 18:37:52,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:37:51" (2/3) ... [2020-10-15 18:37:52,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72835b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:37:52, skipping insertion in model container [2020-10-15 18:37:52,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:37:52" (3/3) ... [2020-10-15 18:37:52,306 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-10-15 18:37:52,317 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:37:52,318 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:37:52,325 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:37:52,326 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:37:52,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,368 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,370 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,370 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,370 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,370 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,371 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,371 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,374 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,375 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,375 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,375 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,386 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:37:52,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:37:52,421 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:37:52,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:37:52,422 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:37:52,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:37:52,422 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:37:52,422 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:37:52,422 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:37:52,423 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:37:52,436 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:37:52,438 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 18:37:52,440 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 18:37:52,442 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-15 18:37:52,485 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-15 18:37:52,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:37:52,491 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 18:37:52,495 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 18:37:53,898 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-15 18:37:53,898 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-15 18:37:53,905 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 18:37:53,964 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 18:37:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 18:37:53,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:37:53,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:53,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:53,978 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:53,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:53,984 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-15 18:37:53,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:53,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393185837] [2020-10-15 18:37:53,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:54,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393185837] [2020-10-15 18:37:54,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:54,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:37:54,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423271150] [2020-10-15 18:37:54,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:37:54,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:54,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:37:54,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:37:54,202 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 18:37:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:54,268 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 18:37:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:37:54,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 18:37:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:54,310 INFO L225 Difference]: With dead ends: 850 [2020-10-15 18:37:54,310 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 18:37:54,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:37:54,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 18:37:54,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 18:37:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 18:37:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 18:37:54,422 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 18:37:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:54,423 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 18:37:54,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:37:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 18:37:54,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:37:54,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:54,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:54,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:37:54,427 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:54,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:54,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-15 18:37:54,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:54,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629321544] [2020-10-15 18:37:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:54,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629321544] [2020-10-15 18:37:54,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:54,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:37:54,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865625844] [2020-10-15 18:37:54,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:54,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:54,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:54,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:54,560 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 18:37:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:54,627 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-15 18:37:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:54,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:37:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:54,635 INFO L225 Difference]: With dead ends: 778 [2020-10-15 18:37:54,635 INFO L226 Difference]: Without dead ends: 634 [2020-10-15 18:37:54,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:54,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-15 18:37:54,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-15 18:37:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-15 18:37:54,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-15 18:37:54,677 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-15 18:37:54,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:54,677 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-15 18:37:54,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-15 18:37:54,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:37:54,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:54,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:54,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:37:54,685 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:54,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:54,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-15 18:37:54,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:54,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445479407] [2020-10-15 18:37:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:54,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445479407] [2020-10-15 18:37:54,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:54,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:37:54,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436591683] [2020-10-15 18:37:54,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:54,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:54,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:54,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:54,780 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-10-15 18:37:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:54,802 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-10-15 18:37:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:54,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:37:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:54,807 INFO L225 Difference]: With dead ends: 688 [2020-10-15 18:37:54,807 INFO L226 Difference]: Without dead ends: 580 [2020-10-15 18:37:54,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-15 18:37:54,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-10-15 18:37:54,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-15 18:37:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-10-15 18:37:54,828 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-10-15 18:37:54,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:54,828 INFO L481 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-10-15 18:37:54,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:54,829 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-10-15 18:37:54,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:37:54,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:54,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:54,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:37:54,830 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:54,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:54,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-10-15 18:37:54,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:54,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934785768] [2020-10-15 18:37:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:54,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934785768] [2020-10-15 18:37:54,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:54,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:54,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166363176] [2020-10-15 18:37:54,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:37:54,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:54,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:37:54,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:54,891 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-10-15 18:37:54,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:54,952 INFO L93 Difference]: Finished difference Result 799 states and 2597 transitions. [2020-10-15 18:37:54,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:37:54,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:37:54,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:54,956 INFO L225 Difference]: With dead ends: 799 [2020-10-15 18:37:54,956 INFO L226 Difference]: Without dead ends: 430 [2020-10-15 18:37:54,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:37:54,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-15 18:37:54,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-15 18:37:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-15 18:37:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-10-15 18:37:54,971 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-10-15 18:37:54,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:54,971 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-10-15 18:37:54,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:37:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-10-15 18:37:54,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:37:54,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:54,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:54,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:37:54,973 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:54,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:54,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-10-15 18:37:54,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:54,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134406508] [2020-10-15 18:37:54,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134406508] [2020-10-15 18:37:55,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:55,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63044084] [2020-10-15 18:37:55,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:37:55,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:37:55,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:55,032 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-10-15 18:37:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,077 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-10-15 18:37:55,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:37:55,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:37:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,080 INFO L225 Difference]: With dead ends: 556 [2020-10-15 18:37:55,080 INFO L226 Difference]: Without dead ends: 262 [2020-10-15 18:37:55,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:37:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-15 18:37:55,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-15 18:37:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-15 18:37:55,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-15 18:37:55,089 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-15 18:37:55,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,090 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-15 18:37:55,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:37:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-15 18:37:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:37:55,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:55,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:55,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:37:55,092 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:55,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:55,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-15 18:37:55,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:55,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777489474] [2020-10-15 18:37:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777489474] [2020-10-15 18:37:55,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:37:55,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830511276] [2020-10-15 18:37:55,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:37:55,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:37:55,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:37:55,189 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-10-15 18:37:55,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,235 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-10-15 18:37:55,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:55,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:37:55,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,238 INFO L225 Difference]: With dead ends: 319 [2020-10-15 18:37:55,238 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 18:37:55,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:55,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 18:37:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-15 18:37:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-15 18:37:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-10-15 18:37:55,247 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-10-15 18:37:55,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,247 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-10-15 18:37:55,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:37:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-10-15 18:37:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:37:55,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:55,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:55,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:37:55,249 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:55,250 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-10-15 18:37:55,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:55,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024690410] [2020-10-15 18:37:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024690410] [2020-10-15 18:37:55,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:37:55,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139578898] [2020-10-15 18:37:55,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:37:55,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:37:55,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:55,375 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-10-15 18:37:55,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,425 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-10-15 18:37:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:37:55,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 18:37:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,427 INFO L225 Difference]: With dead ends: 247 [2020-10-15 18:37:55,427 INFO L226 Difference]: Without dead ends: 182 [2020-10-15 18:37:55,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:37:55,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-15 18:37:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-15 18:37:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-15 18:37:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-15 18:37:55,433 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-10-15 18:37:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,433 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-15 18:37:55,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:37:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-15 18:37:55,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:37:55,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:55,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:55,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:37:55,435 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:55,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:55,435 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-15 18:37:55,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:55,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239759337] [2020-10-15 18:37:55,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239759337] [2020-10-15 18:37:55,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:37:55,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264600298] [2020-10-15 18:37:55,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:37:55,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:37:55,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:37:55,497 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-15 18:37:55,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,554 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-15 18:37:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:37:55,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 18:37:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,556 INFO L225 Difference]: With dead ends: 165 [2020-10-15 18:37:55,556 INFO L226 Difference]: Without dead ends: 132 [2020-10-15 18:37:55,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:37:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-15 18:37:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-15 18:37:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-15 18:37:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-15 18:37:55,561 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-15 18:37:55,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,562 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-15 18:37:55,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:37:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-15 18:37:55,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:37:55,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:55,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:55,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:37:55,563 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:55,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:55,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-15 18:37:55,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:55,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936420604] [2020-10-15 18:37:55,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936420604] [2020-10-15 18:37:55,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 18:37:55,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991402894] [2020-10-15 18:37:55,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:37:55,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:37:55,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:37:55,637 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-15 18:37:55,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,702 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-15 18:37:55,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:37:55,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:37:55,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,722 INFO L225 Difference]: With dead ends: 121 [2020-10-15 18:37:55,722 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 18:37:55,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:37:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 18:37:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-15 18:37:55,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-15 18:37:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-15 18:37:55,725 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-15 18:37:55,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,726 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-15 18:37:55,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:37:55,726 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-15 18:37:55,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:37:55,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:55,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:55,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:37:55,727 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:55,727 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-15 18:37:55,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:55,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132755053] [2020-10-15 18:37:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132755053] [2020-10-15 18:37:55,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:37:55,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238422012] [2020-10-15 18:37:55,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:37:55,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:37:55,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:55,807 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-15 18:37:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,835 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-15 18:37:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:55,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 18:37:55,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,837 INFO L225 Difference]: With dead ends: 146 [2020-10-15 18:37:55,838 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 18:37:55,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:37:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 18:37:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 18:37:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 18:37:55,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-15 18:37:55,841 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-15 18:37:55,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,841 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-15 18:37:55,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:37:55,842 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-15 18:37:55,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 18:37:55,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:37:55,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:37:55,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:37:55,843 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:37:55,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:37:55,843 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-15 18:37:55,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:37:55,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672855355] [2020-10-15 18:37:55,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:37:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:37:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:37:55,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672855355] [2020-10-15 18:37:55,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:37:55,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:37:55,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566990553] [2020-10-15 18:37:55,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:37:55,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:37:55,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:37:55,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:37:55,900 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-15 18:37:55,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:37:55,929 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-15 18:37:55,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:37:55,930 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 18:37:55,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:37:55,930 INFO L225 Difference]: With dead ends: 51 [2020-10-15 18:37:55,930 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:37:55,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:37:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:37:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:37:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:37:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:37:55,932 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-15 18:37:55,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:37:55,932 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:37:55,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:37:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:37:55,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:37:55,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:37:55,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:37:55 BasicIcfg [2020-10-15 18:37:55,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:37:55,940 INFO L168 Benchmark]: Toolchain (without parser) took 4887.68 ms. Allocated memory was 249.6 MB in the beginning and 430.4 MB in the end (delta: 180.9 MB). Free memory was 204.7 MB in the beginning and 369.2 MB in the end (delta: -164.5 MB). Peak memory consumption was 16.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:55,941 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:37:55,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.12 ms. Allocated memory was 249.6 MB in the beginning and 308.3 MB in the end (delta: 58.7 MB). Free memory was 204.7 MB in the beginning and 261.1 MB in the end (delta: -56.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:55,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.30 ms. Allocated memory is still 308.3 MB. Free memory was 261.1 MB in the beginning and 258.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:55,946 INFO L168 Benchmark]: Boogie Preprocessor took 24.92 ms. Allocated memory is still 308.3 MB. Free memory is still 258.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:37:55,947 INFO L168 Benchmark]: RCFGBuilder took 391.27 ms. Allocated memory is still 308.3 MB. Free memory was 258.6 MB in the beginning and 233.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:37:55,948 INFO L168 Benchmark]: TraceAbstraction took 3638.19 ms. Allocated memory was 308.3 MB in the beginning and 430.4 MB in the end (delta: 122.2 MB). Free memory was 231.4 MB in the beginning and 369.2 MB in the end (delta: -137.8 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:37:55,953 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 774.12 ms. Allocated memory was 249.6 MB in the beginning and 308.3 MB in the end (delta: 58.7 MB). Free memory was 204.7 MB in the beginning and 261.1 MB in the end (delta: -56.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.30 ms. Allocated memory is still 308.3 MB. Free memory was 261.1 MB in the beginning and 258.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.92 ms. Allocated memory is still 308.3 MB. Free memory is still 258.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 391.27 ms. Allocated memory is still 308.3 MB. Free memory was 258.6 MB in the beginning and 233.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3638.19 ms. Allocated memory was 308.3 MB in the beginning and 430.4 MB in the end (delta: 122.2 MB). Free memory was 231.4 MB in the beginning and 369.2 MB in the end (delta: -137.8 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1256 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 115 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...