/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:34:08,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:34:08,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:34:08,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:34:08,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:34:08,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:34:08,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:34:08,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:34:08,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:34:08,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:34:08,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:34:08,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:34:08,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:34:08,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:34:08,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:34:08,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:34:08,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:34:08,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:34:08,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:34:08,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:34:08,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:34:08,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:34:08,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:34:08,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:34:08,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 21:34:08,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 21:34:08,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 21:34:08,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 21:34:08,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 21:34:08,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 21:34:08,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:34:08,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:34:08,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:34:08,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:34:08,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:34:08,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:34:08,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:34:08,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:34:08,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:34:08,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:34:08,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:34:08,657 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 [2020-10-21 21:34:08,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:34:08,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:34:08,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:34:08,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:34:08,680 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:34:08,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:34:08,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:34:08,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:34:08,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:34:08,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:34:08,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:34:08,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:34:08,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:34:08,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:34:08,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:34:08,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:34:08,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:34:08,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:34:08,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:34:08,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:34:08,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:34:08,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:34:08,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:34:08,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:34:08,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:34:08,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:34:08,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:34:08,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:34:08,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:34:08,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:34:08,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:34:09,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:34:09,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:34:09,004 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:34:09,005 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:34:09,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-21 21:34:09,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d336eb1d/5e40e491cdd1481ab01073674ed34289/FLAGbc573e475 [2020-10-21 21:34:09,580 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:34:09,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-21 21:34:09,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d336eb1d/5e40e491cdd1481ab01073674ed34289/FLAGbc573e475 [2020-10-21 21:34:09,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d336eb1d/5e40e491cdd1481ab01073674ed34289 [2020-10-21 21:34:09,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:34:09,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:34:09,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:34:09,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:34:09,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:34:09,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:34:09" (1/1) ... [2020-10-21 21:34:09,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f59d8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:09, skipping insertion in model container [2020-10-21 21:34:09,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:34:09" (1/1) ... [2020-10-21 21:34:09,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:34:10,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:34:10,353 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 21:34:10,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:34:10,514 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:34:10,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 21:34:10,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:34:10,660 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:34:10,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10 WrapperNode [2020-10-21 21:34:10,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:34:10,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:34:10,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:34:10,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:34:10,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:34:10,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:34:10,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:34:10,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:34:10,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (1/1) ... [2020-10-21 21:34:10,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:34:10,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:34:10,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:34:10,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:34:10,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (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 [2020-10-21 21:34:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 21:34:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-21 21:34:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-21 21:34:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 21:34:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 21:34:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:34:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 21:34:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:34:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:34:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:34:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 21:34:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:34:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:34:10,851 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:34:11,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:34:11,248 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-21 21:34:11,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:34:11 BoogieIcfgContainer [2020-10-21 21:34:11,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:34:11,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:34:11,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:34:11,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:34:11,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:34:09" (1/3) ... [2020-10-21 21:34:11,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ec0625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:34:11, skipping insertion in model container [2020-10-21 21:34:11,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:10" (2/3) ... [2020-10-21 21:34:11,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ec0625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:34:11, skipping insertion in model container [2020-10-21 21:34:11,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:34:11" (3/3) ... [2020-10-21 21:34:11,260 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2020-10-21 21:34:11,273 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:34:11,273 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:34:11,281 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 21:34:11,282 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:34:11,311 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,312 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,339 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,339 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,339 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,340 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,341 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:11,348 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 21:34:11,362 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 21:34:11,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:34:11,381 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:34:11,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:34:11,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:34:11,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:34:11,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:34:11,382 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:34:11,382 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:34:11,395 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:34:11,397 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 100 transitions, 222 flow [2020-10-21 21:34:11,400 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 100 transitions, 222 flow [2020-10-21 21:34:11,402 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 100 transitions, 222 flow [2020-10-21 21:34:11,454 INFO L129 PetriNetUnfolder]: 16/100 cut-off events. [2020-10-21 21:34:11,455 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 21:34:11,462 INFO L80 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 100 events. 16/100 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 175 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2020-10-21 21:34:11,466 INFO L116 LiptonReduction]: Number of co-enabled transitions 2296 [2020-10-21 21:34:12,875 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-21 21:34:13,365 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-21 21:34:13,477 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-21 21:34:13,522 INFO L131 LiptonReduction]: Checked pairs total: 5734 [2020-10-21 21:34:13,523 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-10-21 21:34:13,548 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 43 transitions, 108 flow [2020-10-21 21:34:13,590 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-21 21:34:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-21 21:34:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 21:34:13,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:13,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 21:34:13,599 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:13,604 INFO L82 PathProgramCache]: Analyzing trace with hash 72119955, now seen corresponding path program 1 times [2020-10-21 21:34:13,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:13,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995492990] [2020-10-21 21:34:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:13,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995492990] [2020-10-21 21:34:13,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:13,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:34:13,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189451784] [2020-10-21 21:34:13,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:34:13,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:13,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:34:13,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:13,879 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-21 21:34:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:13,944 INFO L93 Difference]: Finished difference Result 391 states and 959 transitions. [2020-10-21 21:34:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:34:13,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-21 21:34:13,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:13,963 INFO L225 Difference]: With dead ends: 391 [2020-10-21 21:34:13,964 INFO L226 Difference]: Without dead ends: 250 [2020-10-21 21:34:13,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-21 21:34:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2020-10-21 21:34:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-21 21:34:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 615 transitions. [2020-10-21 21:34:14,039 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 615 transitions. Word has length 6 [2020-10-21 21:34:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:14,040 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 615 transitions. [2020-10-21 21:34:14,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:34:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 615 transitions. [2020-10-21 21:34:14,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 21:34:14,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:14,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:14,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:34:14,043 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:14,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:14,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1157710584, now seen corresponding path program 1 times [2020-10-21 21:34:14,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:14,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148501714] [2020-10-21 21:34:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:14,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148501714] [2020-10-21 21:34:14,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:14,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:34:14,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189431998] [2020-10-21 21:34:14,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:34:14,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:14,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:34:14,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:14,138 INFO L87 Difference]: Start difference. First operand 232 states and 615 transitions. Second operand 3 states. [2020-10-21 21:34:14,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:14,184 INFO L93 Difference]: Finished difference Result 225 states and 579 transitions. [2020-10-21 21:34:14,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:34:14,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 21:34:14,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:14,187 INFO L225 Difference]: With dead ends: 225 [2020-10-21 21:34:14,187 INFO L226 Difference]: Without dead ends: 156 [2020-10-21 21:34:14,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:14,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-21 21:34:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-10-21 21:34:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-21 21:34:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 404 transitions. [2020-10-21 21:34:14,203 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 404 transitions. Word has length 8 [2020-10-21 21:34:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:14,204 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 404 transitions. [2020-10-21 21:34:14,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:34:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 404 transitions. [2020-10-21 21:34:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 21:34:14,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:14,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:14,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:34:14,206 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:14,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:14,207 INFO L82 PathProgramCache]: Analyzing trace with hash -214241760, now seen corresponding path program 1 times [2020-10-21 21:34:14,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:14,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51830485] [2020-10-21 21:34:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:14,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51830485] [2020-10-21 21:34:14,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:14,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:34:14,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374377204] [2020-10-21 21:34:14,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:14,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:14,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:14,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:14,275 INFO L87 Difference]: Start difference. First operand 156 states and 404 transitions. Second operand 4 states. [2020-10-21 21:34:14,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:14,327 INFO L93 Difference]: Finished difference Result 204 states and 564 transitions. [2020-10-21 21:34:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:14,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 21:34:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:14,331 INFO L225 Difference]: With dead ends: 204 [2020-10-21 21:34:14,331 INFO L226 Difference]: Without dead ends: 150 [2020-10-21 21:34:14,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:34:14,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-21 21:34:14,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-21 21:34:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-21 21:34:14,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 384 transitions. [2020-10-21 21:34:14,347 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 384 transitions. Word has length 11 [2020-10-21 21:34:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:14,347 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 384 transitions. [2020-10-21 21:34:14,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 384 transitions. [2020-10-21 21:34:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 21:34:14,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:14,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:14,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:34:14,350 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:14,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:14,350 INFO L82 PathProgramCache]: Analyzing trace with hash 767004779, now seen corresponding path program 1 times [2020-10-21 21:34:14,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:14,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636250247] [2020-10-21 21:34:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:14,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636250247] [2020-10-21 21:34:14,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:14,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:34:14,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521179581] [2020-10-21 21:34:14,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:14,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:14,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:14,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:14,401 INFO L87 Difference]: Start difference. First operand 150 states and 384 transitions. Second operand 4 states. [2020-10-21 21:34:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:14,477 INFO L93 Difference]: Finished difference Result 198 states and 540 transitions. [2020-10-21 21:34:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:14,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 21:34:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:14,479 INFO L225 Difference]: With dead ends: 198 [2020-10-21 21:34:14,480 INFO L226 Difference]: Without dead ends: 144 [2020-10-21 21:34:14,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:34:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-21 21:34:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-21 21:34:14,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-21 21:34:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 363 transitions. [2020-10-21 21:34:14,494 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 363 transitions. Word has length 11 [2020-10-21 21:34:14,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:14,495 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 363 transitions. [2020-10-21 21:34:14,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:14,495 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 363 transitions. [2020-10-21 21:34:14,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 21:34:14,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:14,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:14,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:34:14,498 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:14,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:14,498 INFO L82 PathProgramCache]: Analyzing trace with hash 187257790, now seen corresponding path program 1 times [2020-10-21 21:34:14,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:14,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113821916] [2020-10-21 21:34:14,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:14,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113821916] [2020-10-21 21:34:14,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:14,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:34:14,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878334469] [2020-10-21 21:34:14,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:14,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:14,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:14,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:14,545 INFO L87 Difference]: Start difference. First operand 144 states and 363 transitions. Second operand 4 states. [2020-10-21 21:34:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:14,573 INFO L93 Difference]: Finished difference Result 96 states and 188 transitions. [2020-10-21 21:34:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:14,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-21 21:34:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:14,574 INFO L225 Difference]: With dead ends: 96 [2020-10-21 21:34:14,574 INFO L226 Difference]: Without dead ends: 86 [2020-10-21 21:34:14,575 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 [2020-10-21 21:34:14,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-21 21:34:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-21 21:34:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-21 21:34:14,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 171 transitions. [2020-10-21 21:34:14,580 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 171 transitions. Word has length 15 [2020-10-21 21:34:14,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:14,581 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 171 transitions. [2020-10-21 21:34:14,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:14,581 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 171 transitions. [2020-10-21 21:34:14,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 21:34:14,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:14,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:14,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:34:14,583 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:14,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1776067676, now seen corresponding path program 1 times [2020-10-21 21:34:14,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:14,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797274714] [2020-10-21 21:34:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:14,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797274714] [2020-10-21 21:34:14,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:14,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:34:14,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150630897] [2020-10-21 21:34:14,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:14,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:14,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:14,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:14,628 INFO L87 Difference]: Start difference. First operand 86 states and 171 transitions. Second operand 4 states. [2020-10-21 21:34:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:14,645 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-10-21 21:34:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:14,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-21 21:34:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:14,646 INFO L225 Difference]: With dead ends: 12 [2020-10-21 21:34:14,646 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 21:34:14,647 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 [2020-10-21 21:34:14,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 21:34:14,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 21:34:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 21:34:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 21:34:14,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-21 21:34:14,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:14,648 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 21:34:14,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 21:34:14,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 21:34:14,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:34:14,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:34:14 BasicIcfg [2020-10-21 21:34:14,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:34:14,654 INFO L168 Benchmark]: Toolchain (without parser) took 4692.73 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 99.9 MB in the beginning and 149.0 MB in the end (delta: -49.0 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,655 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.23 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.1 MB in the beginning and 157.5 MB in the end (delta: -58.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.85 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,658 INFO L168 Benchmark]: Boogie Preprocessor took 27.14 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,659 INFO L168 Benchmark]: RCFGBuilder took 471.41 ms. Allocated memory is still 202.4 MB. Free memory was 153.6 MB in the beginning and 127.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,660 INFO L168 Benchmark]: TraceAbstraction took 3399.62 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 127.6 MB in the beginning and 149.0 MB in the end (delta: -21.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:14,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.23 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.1 MB in the beginning and 157.5 MB in the end (delta: -58.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 89.85 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.14 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.41 ms. Allocated memory is still 202.4 MB. Free memory was 153.6 MB in the beginning and 127.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3399.62 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 127.6 MB in the beginning and 149.0 MB in the end (delta: -21.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1610 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 69 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 263 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 90 PlacesBefore, 40 PlacesAfterwards, 100 TransitionsBefore, 43 TransitionsAfterwards, 2296 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 16 ConcurrentYvCompositions, 7 ChoiceCompositions, 90 TotalNumberOfCompositions, 5734 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 255 SDtfs, 184 SDslu, 206 SDs, 0 SdLazy, 64 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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...